Posts Tagged ‘NASA’
Photographer Isaac Gutiérrez Pascual of Spain shot this beautiful photograph of the sky that contains four different subjects: birds, clouds, the Moon, and Venus. It was shot using a Canon 5D and a 70-200mm f/2.8L IS lens. NASA writes,
[...] a crescent Moon and the planet Venus, on the far right, were captured during sunset posing against a deep blue sky. In the foreground, dark storm clouds loom across the image bottom, while a white anvil cloud shape appears above. Black specks dot the frame, caused by a flock of birds taking flight. Very soon after this picture was taken, however, the birds passed by, the storm ended, and Venus and the Moon set.
Image credit: Photograph by Isaac Pascual and used with permission
NASA has released a gigantic catalog of the night sky that contains more than 563 million stars, galaxies, asteroids, planets, and objects. The images were captured by the infrared cameras of the Wide-field Infrared Survey Explorer (WISE) mission, which has been collecting data for the past two years. After capturing more than 2.7 million images of the sky, NASA created an epic panorama showing the entire sky by stitching together 18,000 of those images. You can view the panorama in a zoomable browser here or download the 180MP/73.5MB photograph here.
We’ve seen quite a few videos lately by people who send cameras up to the edges of space on weather balloons. Here’s the big-budget version of that: footage from a camera attached to a NASA Space Shuttle’s booster rockets. Lift off from Earth occurs at 0:27, separation from the shuttle occurs at 1:57, and splashing into the ocean occurs at 7:21. The sound captured by the cameras has been remastered by George Lucas’ Skywalker Sound.
This past Sunday, a group of amateur astronomers in San Antonio, Texas successfully “flashed” the International Space Station with a blue laser and spotlight as it whizzed by overhead. While this might sound like an easy thing to do, it’s much more complicated than you think. Astronaut Don Pettit shot the photo of the experiment seen above, and writes,
This took a number of engineering calculations. Projected beam diameters (assuming the propagation of a Gaussian wave for the laser) and intensity at the target had to be calculated. Tracking space station’s path as it streaked across the sky was another challenge. I used email to communicate with Robert Reeves, one of the association’s members. Considering that it takes a day, maybe more, for a simple exchange of messages (on space station we receive email drops two to three times a day), the whole event took weeks to plan.
The International Space Station maintains an orbital altitude of between 205 and 255 miles, so the fact that Pettit was able to see the flash of light from that distance is quite impressive.
Want to see how Las Vegas has grown from 1972 through 2010? NASA created this unique time-lapse video using photographs captured by Landsat satellites. From this perspective, it almost looks like humans are a mold spreading across the face of a fruit.
After NASA published its latest jaw-dropping “Blue Marble” photograph of Earth last month, many of you wondered how “real” the image was. Here’s NASA’s explanation on how their images are created:
The Suomi NPP satellite is in a polar orbit around Earth at an altitude of 512 miles (about 824 kilometers), but the perspective of the new Eastern hemisphere ‘Blue Marble’ is from 7,918 miles (about 12,743 kilometers). NASA scientist Norman Kuring managed to ‘step back’ from Earth to get the big picture by combining data from six different orbits of the Suomi NPP satellite. Or putting it a different way, the satellite flew above this area of Earth six times over an eight hour time period. Norman took those six sets of data and combined them into one image.
So rather than being a composite of multiple images captured from the same perspective, they do in fact map images captured by the satellite onto a 3D sphere.
NASA has released another Blue Marble photograph of Earth. It calls this one the “most amazing, highest resolution image of Earth ever”. The image is a composite created from a number of photos of Earth’s surface captured on January 4, 2012, and weighs in at a massive 64-megapixels (8000×8000). You can download the full-res version here. Be warned though — it might crash your browser.
Farmlands might look pretty ordinary from ground level, but photograph crop fields from space (or even from an airplane) and you’ll see strange and beautiful patterns.
NASA photographer Lauren Harnett captured this photograph of the International Space Station passing in front of the moon. What’s amazing is that it didn’t require any fancy astronomy equipment — Harnett was shooting from a parking lot using a Nikon D3S, 600mm lens, 2x teleconverter, heavy duty tripod and sandbag, and a remote shutter release. She shot at 1/1600, f/8, and ISO 2500 in burst mode, and then combined the resulting photographs into this one image.
Space Station Crossing Face of Moon (Thanks Warren!)
Image credit: Photograph by Lauren Harnett/NASA