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Posts Tagged ‘captures’

Video: Curiosity rover captures 360-degree panorama of Mount Sharp on Mars, showing changing landscape

24 Aug

NASA’s Curiosity Mars rover recently explored Mount Sharp. The mountain is 8km (5 mi) tall and is within the 154km-wide (96 mi) basin of Mars’s Gale Crater. Curiosity captured a new 360-degree panorama at Mount Sharp, revealing its diverse terrain and shedding light on the area’s ancient environment.

NASA writes, ‘Images of knobbly rocks and rounded hills are delighting scientists as NASA’s Curiosity rover climbs Mount Sharp, a 5-mile-tall (8-kilometer-tall) mountain within the 96-mile-wide (154-kilometer-wide) basin of Mars’ Gale Crater. The rover’s Mast Camera, or Mastcam, highlights those features in a panorama captured on July 3, 2021 (the 3,167th Martian day, or sol, of the mission).’

Studying the region has been a long-term goal for the Curiosity mission, which is now in its ninth year on Mars. By studying the layers of Mount Sharp, scientists hope to understand how the environment of Gale Crater dried over time. Similar changes in mineral composition are seen across the planet, so understanding Gale Crater should pay dividends in understanding other parts of Mars.

‘The rocks here will begin to tell us how this once-wet planet changed into the dry Mars of today, and how long habitable environments persisted even after that happened,’ said Abigail Fraeman, Curiosity’s deputy project scientist, at NASA’s Jet Propulsion Laboratory in Southern California.

‘NASA’s Curiosity Mars rover used its Mast Camera, or Mastcam, to capture this 360-degree view near “Rafael Navarro Mountain” on July 3, 2021, the 3,167th Martian day, or sol, of the mission. Stitched together from 129 individual images, the panorama has been white-balanced so that the colors of the rock materials resemble how they would appear under daytime lighting conditions on Earth. A craggy hump that stretches 450 feet (137 meters) tall, the geologic feature is located on Mount Sharp in northwest Gale Crater.’ Credit: NASA/JPL-Caltech/MSSS. Click to enlarge.

When Curiosity landed on Mars on August 5, 2012, its primary mission was to study whether different Martian environments could have supported microbial life in Mars’s ancient past. Lakes and groundwater once existed within Gale Crater, and scientists want to use Curiosity to understand better what happened and how Mars changed over time.

Looking forward, Curiosity is currently working its way up a path between Rafael Navarro Mountain and a towering butte. In the coming year, Curiosity will drive past these features and enter a canyon. It will then revisit Greenheugh Pediment.

You can learn more about the Curiosity mission by visiting NASA’s dedicated Mars website. You can also check out some of our prior coverage, including Curiosity photographing rare shimmering clouds in June and a neat selfie Curiosity sent to Earth in March.

Articles: Digital Photography Review (dpreview.com)

 
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Hubble captures stunning gravitational interaction between a trio of galaxies

05 Aug

NASA has published a stunning image captured by the Hubble Space Telescope that shows a ‘three-way gravitational tug-of-war between interacting galaxies.’ The galaxies in the show are in system Arp 195, a system featured in the Atlas of Peculiar Galaxies, a list of the ‘weirder and more wonderful galaxies in the universe.’

Arp 195, otherwise known as UGC 4653, is a galaxy with material ejected from nuclei. It’s one of 15 Arp-numbered galaxies with this characteristic. All but one of these galaxies are interacting or have recently interacted with other celestial objects. The trademark tidal features of the galaxies, including Arp 195, appear to be the result of gravitational interactions.

Credit: ESA/Hubble & NASA, J. Dalcanton. Click to enlarge.

Hubble’s new sighting is in the Lynx constellation, about 747 million light-years from Earth. It’s fantastic to see new images from Hubble, as the venerable space telescope suffered significant downtime following a computer glitch earlier this summer. Hubble recently returned to service and celebrated by publishing a pair of stunning monochromatic images last month.

‘These images, from a program led by Julianne Dalcanton of the University of Washington in Seattle, demonstrate Hubble’s return to full science operations. [Left] ARP-MADORE2115-273 is a rarely observed example of a pair of interacting galaxies in the southern hemisphere. [Right] ARP-MADORE0002-503 is a large spiral galaxy with unusual, extended spiral arms. While most disk galaxies have an even number of spiral arms, this one has three.’ Text and image credit: Science: NASA, ESA, STScI, Julianne Dalcanton (UW) Image processing: Alyssa Pagan (STScI). Click to enlarge.

The hiatus aside, Hubble’s observational time is valuable. NASA writes, ‘Observing time with Hubble is extremely valuable, so astronomers don’t want to waste a second. The schedule for Hubble observations is calculated using a computer algorithm which allows the spacecraft to occasionally gather bonus snapshots of data between longer observations. This image of the clashing triplet of galaxies in Arp 195 is one such snapshot. Extra observations such as these do more than provide spectacular images – they also help to identify promising targets to follow up with using telescopes such as the upcoming NASA/ESA/CSA James Webb Space Telescope.’

Hubble offers a unique look into distant space, and it’s great to see that the telescope is working well following its concerning issue. If you’d like to see more of what Hubble is up to, you can check out an image gallery here.

Articles: Digital Photography Review (dpreview.com)

 
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Photographer captures the highest resolution snowflake photos in the world

12 Nov
Image credit: ‘Ice Queen’ by Nathan Myhrvold

For many in the northern hemisphere, winter’s cold grip is just around the corner. With the cold comes snow, a beautiful photographic subject. Few photographers capture snow quite like photographer Nathan Myhrvold. His microscopic images of snowflakes showcase extraordinary detail and natural beauty.

Of his snowflake subjects, Myhrvold says, ‘Snowflakes are a great example of hidden beauty. Water, an incredibly familiar thing to all of us, is quite unfamiliar when you see it in this different view. The intricate beauty of snowflakes derives from their crystal structure, which is a direct reflection of the microscopic aspects of the water molecule.’

Myhrvold faced numerous challenges when photographing snowflakes. They are small, fragile objects only a few millimeters across. Further, snowflakes of course melt, but they also sublimate. Both processes break down the structure of snowflakes and reduce their sharp edges and details. Time and temperature both acted against Myhrvold, so he had to come up with solutions.

‘No Two Alike’ by Nathan Myhrvold

Over about 18 months, Myhrvold designed and built a custom snowflake camera. His camera, which he states is the highest-resolution snowflake camera in the world, uses a 100MP medium format Phase One image sensor adapted to a microscope objective. Myhrvold designed an optical path to fill the image area of the large medium format sensor, allowing him to capture large, sharp images.

To slow down the natural melting and vaporization process of snowflakes, the microscope has a cooling stage, allowing Myhrvold to capture enough images to create a focus stacked final photograph. Further, the camera is paired with high-speed LED lights to reduce the heat output of the lights and allow Myhrvold to quickly capture his images. The camera has a minimum shutter speed of 500ms.

Building the equipment is only one part of the challenge, you must also have beautiful snowflakes to work with. Myhrvold shot on location in Fairbanks, Alaska and Yellowknife, Northwest Territories, Canada. He says that some of the best snowflakes found were between -15° and -20° F (-26 to -29° C). In the images in this article, we see the following types of snow crystals: sector plates, stellar dendrites and fernlike stellar dendrites.

‘Yellowknife Flurry’ by Nathan Myhrvold

To view more of Nathan Myhrvold’s work, which comprises a wide range of subjects from landscapes to food and much more, click here. He also has galleries in Las Vegas, New Orleans, Seattle and San Diego.

Image credit: All photos captured by Nathan Myhrvold and used with permission

Articles: Digital Photography Review (dpreview.com)

 
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Hubble captures supernova 70M light-years away as it briefly outshines its host galaxy

06 Oct

The Hubble Space Telescope recently captured images of an exploding star 70 million light-years away. The event was recorded as part of an ongoing program to measure the expansion rate of the universe in order to better understand its age. For a moment, the explosion outshined its entire host galaxy and the resulting energy was ‘equal to the radiance of 5 billion Suns.’

NASA has assembled its images from the Hubble Space Telescope to create a new time-lapse sequence, seen below. The supernova explosion took place in the spiral galaxy NGC 2525. In February 2018, Hubble began its observation of SN2018gv after a Japanese amateur astronomer, Koichi Itagaki, first detected it in mid-January. The supernova has been used to help precisely the expansion rate of the universe, which is itself critical to our understanding of the universe.

The time-lapse sequence above spanned nearly a year, with the supernova first appearing ‘as a blazing star located on the galaxy’s outer edge. It initially outshines the brightest stars in the galaxy before fading out of sight.’

Nobel Laureate Adam Riess of the Space Telescope Science Institute (STScI) and John Hopkins University says, ‘No earthly fireworks display can compete with this supernova, captured in its fading glory by the Hubble Space Telescope.’ Riess is the leader of the High-z Supernova Search Team and the Supernovae H0 for the Equation of State (SH0ES) Team.

The NASA Hubble Site news release continues, ‘The type of supernova seen in this sequence originated from a burned-out star—a white dwarf located in a close binary system—that is accreting material from its companion star. When the white dwarf reaches a critical mass, its core becomes hot enough to ignite nuclear fusion, turning it into a giant atomic bomb. This thermonuclear runaway process tears the dwarf apart. The opulence is short-lived as the fireball fades away.’ SN2018gv is a Type Ia supernova. You can learn more about supernovae and the characteristics of each type in this article from BBC’s Sky at Night.

NASA, ESA, and A. Riess (STScI/JHU) and the SH0ES team Acknowledgment: M. Zamani (ESA/Hubble)

Supernovae like SN2018gv peak at the same brightness, which allows them to act a type of standard, ‘standard candles.’ With the actual peak brightness known, scientists can determine the distances of host galaxies by comparing visible brightness. With this information, it is then possible to measure the expansion rate of the universe itself. You can learn more about how Hubble has aided in our understanding of the universe’s expansion rate in this article.

Articles: Digital Photography Review (dpreview.com)

 
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Brooklyn photographer captures neighborhood portraits of hope, unity amidst ‘unprecedented’ isolation

03 Apr

As many artists around the world have had to do amidst the Coronavirus pandemic, photographer Stephen Lovekin decided to make the most of these more isolated times to document families and their messages to the world as shared through the windows of Lovekin’s Brooklyn neighborhood of Ditmas Park.

Lovekin, who’s a Shutterstock editorial photographer, came up with the idea for the project after looking for ways to help people feel more connected despite being separated from one another.

‘As a photographer I have always loved and been drawn to shooting portraits – a process that allows a connection to be made between photographer, subject, and viewer,’ Lovekin says about the project. ‘So, when this Coronavirus began to rapidly spread and people were ordered into ‘self-isolation’ and ‘social distancing’, I began to feel compelled to document this unprecedented time in our history by starting locally by reaching out to people in my Brooklyn neighborhood of Ditmas Park to see how they were feeling and to see what message, if any, they would like to share with the world, whether they be personal, political, or spiritual.’

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The latest installment of my ‘Words At The Window: Self Isolation And The Coronavirus’ project shot in the neighborhood of Ditmas Park, Brooklyn NYC. #shutterstocknow #wordsatthewindow #selfisolation #quarantine #coronavirus #covid19 #washyourhands #wegotthis #alonetogether #socialdistancing #ditmaspark #brooklyn #nyc #blackandwhite #portrait #nikon

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As for how the portraits became a series of shots framed within windows, Lovekin says that wasn’t the original plan. ‘When beginning the project I hadn’t completely settled on the idea of photographing everyone behind a window. Some people would come on their porches or stoops, but that just didn’t feel right to me for some reason,’ says Lovekin. ‘As the project began to evolve the idea of the window started to make more sense. The window being something that we look out on the world from. Something that literally frames how people can look in on us and how we look out at the world. Something that we normally do not enter or exit from.’

The project has only been going on for a week, but it’s already gained a following across social media. Lovekin says the ‘plan is to have it be an ongoing project for as long as I can safely make it possible.’

Shutterstock also caught wind of the project and teamed up with Lovekin to offer the ongoing series as a collection available to purchase, with 10% of all sales going to GiveDirectly, Inc., an organization that ‘allows donors to send money directly to the poor with no strings attached,’ according to its website. Charity Navigator, a third-party charity auditor of sorts, rates GiveDirectly, Inc. four out of four stars, the highest rating it gives to organizations that offer accountability and transparency in their operations.

Below are a few images from the series Lovekin shared with us:

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Lovekin offers this parting message to viewers of the project:

‘I hope that in this time of chaos and uncertainty this project will help people feel more connected to the outside world even though we are all literally separated from one another for an unknown amount of time. If we continue to communicate and connect with those around us in a direct, honest, and positive way can get through this together. It will not be easy, but nothing worthwhile ever really is. Stay safe and stay at home! And as my own children’s sign said, “Soon we will be together”.’

You can find the full series on Shutterstock’s website and keep up with the latest portraits on Lovekin’s Instagram profile.

Articles: Digital Photography Review (dpreview.com)

 
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The DJI Mavic Mini is an ultralight, sub-250g drone that captures 2.7K video at 30fps

01 Nov

DJI has officially lifted the veil on its new sub-250g ultra-light drone, the Mavic Mini. The Mavic Mini is the smallest and lightest drone DJI has made to date, but despite its compact size, DJI has managed to pack quite a few features found in its more robust drones, such as the Mavic Air and Mavic Pro.

Inside, it features a 12-megapixel 1/2.3-inch sensor that can record 2.7K video at 30fps and 1080p video at 60 frames per second (fps). The camera module is mounted on a three-axis that sits centered beneath the main frame of the drone.

To coincide with the release of the Mavic Mini, the DJI Fly app has received an update that adds new features, fly modes and tutorials to help get first-time operators off the ground. In DJI’s own words, ‘New pilots can choose to fly in Position (P) mode for basic operation, more experienced pilots can unlock more capabilities in Sport (S) mode, and content creators can choose CineSmooth (C) mode to lengthen braking time for smoother shots and more cinematic footage.’

DJI has also added QuickShots, which are pre-programmed flight maneuvers that can b e performed with the tap of a button. The modes are defined as follows:

Rocket – Mavic Mini flies straight up into the air with the camera pointing downward following your subject. Set a height limit of 40, 60, 80, 100, or 120 feet.
Circle – Mavic Mini will circle around your subject at a constant altitude and distance.
Dronie – Mavic Mini flies backward and upward, with the camera tracking your subject. Set a height limit of 40, 60, 80, 100, or 120 feet.
Helix – Mavic Mini flies upward and away, spiraling around your subject. Set a height limit of 40, 60, 80, 100, or 120 feet.

DJI claims the Mavic Mini will offer up to 30 minutes of flight time. It features onboard Wi-Fi and GPS for transmitting video to the included controller and keeping tabs on where the drone is at all times. DJI notes the Wi-Fi system has a maximum range of 4km (2.5 miles) when unobstructed and not in a geo-locked area.

As previously mentioned, the Mavic Mini weighs just 249g (0.55lbs). The weight of Mavic Mini is significant because it falls below the 250g limit imposed by the United States’ Federal Aviation Administration (FAA) that requires any drone heavier than 250g (0.55lbs) and less than 25KG (55lbs) be registered. By shrinking the weight of the Mavic Mini while retaining many of the technologies found in its heavier drones, DJI has opened up a new realm of possibilities for would-be drone operators who want a more compact drone that can be flown without registering it through the FAA.

In addition to the drone and controller, DJI has made a new collection of accessories specific to the Mavic Mini. These include:

360-degree Propeller Guard: Provides a 360° guard for added safety.
Charging Base: Charge and display Mavic Mini with this unique, illuminated station.
Propeller Holder: Travel easier with Mavic Mini with the propeller holder that locks the props into place.
DIY Creative Kit: Personalize your Mavic Mini with custom stickers or draw your own design.
Snap Adapter: Attach a toy building brick or a mini LED display to Mavic Mini to write custom messages.

The Mavic Mini is available starting today on DJI’s online store for $ 399. The Mavic Mini Fly More Combo — which includes a dedicated carrying case, the 360-degree propeller guard, the charging base, and three extra batteries — is available for $ 499. You can also check out our hands-on with the DJI Mavic Mini.

Articles: Digital Photography Review (dpreview.com)

 
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Photographer Jean Fruth captures Grassroots baseball in Route 66 Tour

25 Oct

The Grassroots Baseball project aims to shine a light on the game of baseball as it is played in yards, streets, and small community fields. Away from the bright lights and huge stadiums of the major league game, the project’s co-founder, photographer and Sony Artisan Jean Fruth, has been documenting all levels of the amateur game in the US and around the world.

This summer, Jean and her team embarked on the ‘Route 66’ tour, taking in historical sights from Chicago to Santa Monica. We joined Jean as she worked with Sony’s Alpha a9, photographing the people and communities that keep grassroots baseball alive.

Grassroots Baseball – pictures by Jean Fruth

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Articles: Digital Photography Review (dpreview.com)

 
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Storm chaser captures incredible tornado footage with a drone

02 May

You don’t need to watch the classic 1996 film Twister to understand that storm chasing is risky, life-threatening work; but that didn’t prevent WXChasing’s Brandon Clement from honing in on a tornado located near Sulphur, Oklahoma, and capturing some epic 4k footage with a drone.

‘I’ve been working on getting that shot for about three years now,’ said Clement to the Washington Post. Clement has been chasing storms since childhood. ‘I’ve probably done a half-million miles chasing across the country by now. But this one is pretty special.’

According to reports from AccuWeather, at least 25 tornadoes were reported across southern and central United States on Tuesday including Texas, Oklahoma, Kansas, Missouri, and Arkansas. Clement happened to be in the path of the non-destructive occurrence in Oklahoma and expertly maneuvered the drone to capture a perspective that impressed meteorologists.

FStoppers pointed out that the last time such poignant footage was captured, it came from the perspective of a helicopter over three decades ago. KARE helicopter pilot Max Messmer, along with photographer Tom Empey, stumbled upon a forming tornado and broadcast the entire phenomenon live during the 5 o’clock news.

While tornadoes have been captured from the perspective of a drone before, this is the first time a remote pilot has created something that transcends the typical, static imagery taken from a distance.

Articles: Digital Photography Review (dpreview.com)

 
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NASA Astronaut Drew Feustel explains how he captures racetrack images from space

28 Feb
Photograph of Drew Feustel taking a photograph outside the International Space Station while on a space walk mission.

NASA astronaut Drew Feustel has detailed his love of cars and racing in a new interview with Hot Rod Network, as well as his work photographing racetracks from space. Feustel has shared a number of these images on social media, each providing a unique look at racetracks around the world.

The images were captured from the International Space Station, where Feustel served as commander from June 2018 to October 2018. During the interview, Feustel explained that he would work with mission control ground support teams to coordinate times when he could attempt to capture the images.

German GP at Sachsenring Circuit — MotoGP

Feustel shot the images during his free time in space, where he’d plan ahead to capture the racetracks as the ISS passed overhead. The photography project ‘wasn’t a trivial thing,’ he said during the interview, explaining that he’d have to consider whether the conditions would be clear enough to capture the images and how he would get them.

Feustel said:

The photos were taken in my spare time—nights or weekends, or middle of the night or whenever, basically when I knew I was going to be flying over a track I would plan ahead for the day so that I had some free time to use the 5 minutes that I had to catch a track as I passed overhead, and then get back on with my work—I managed to capture all of them.

German GP at the Hockenheimring — Formula 1

The images were taken using a Nikon D5 camera with an 800mm lens and a 2x converter. Locating the racetracks from space was tricky and, in some cases, didn’t pan out:

When I looked out in the lens you could probably fit 30 tracks into the area, I couldn’t see them with the naked eye, usually, but if I pointed the camera in the right place, I could see them through the viewfinder. There were a lot of times where I couldn’t see them, and entirely missed a track because I pointed the camera in the wrong spot.

The ISS’s high-speed travel through space — it travels approximately 28,000kph / 17,000mph — compounded the difficulty, giving Feustel less than a minute to capture the racetrack before the window of opportunity closed.

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The effort paid off, however, resulting in dozens of images of racetracks located around the world. The public can view Feustel’s images on his Instagram and Twitter accounts.

Articles: Digital Photography Review (dpreview.com)

 
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NASA Curiosity rover captures 360 panorama from its Vera Rubin Ridge ‘Rock Hall’ drill site

15 Feb

Last month, NASA announced that Curiosity rover had wrapped up its work at Mars’ Vera Rubin Ridge and would be making its way to a clay-rich region near the Red Planet’s Mt. Sharp for additional work. In an update on that mission last week, the space agency shared a panoramic image captured by Curiosity’s MastCam at the ridge drill site before it left, as well as an interactive video of the area.

Curiosity’s last drill site on the ridge is known as ‘Rock Hall,’ and it’s located relatively close to the ‘clay-bearing unit’ that researchers will study next. A panorama from the Rock Hall location was created using images captured by the rover before it departed the site. NASA also published a 360-degree video from the images and annotated a few landmarks in it, including Mt. Sharp in the distance.

Visible near Mt. Sharp is the clay-rich region, now called ‘Glen Torridon,’ where Curiosity will help researchers uncover more details about Mars’ landscape and history. The rover is equipped with multiple cameras, including the MastCam and the Mars Hand Lens Imager (MAHLI), which is attached to its robotic arm.

Last month, NASA shared a stitched image of the full Curiosity rover at the Rock Hall drill site; that image is made from 57 individual images that were captured using the MAHLI camera. The ‘selfie’ features the final Rock Hall drill site in the bottom center of the image.

Articles: Digital Photography Review (dpreview.com)

 
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