Mars Engulfed

What’s happened to Mars? In 2001, Mars underwent a tremendous planet-wide dust storm — one of the largest ever recorded from Earth. To show the extent, these two Hubble Space Telescope storm watch images from late June and early September (2001) offer dramatically contrasting views of the martian surface. At left, the onset of smaller “seed” storms can be seen near the Hellas basin (lower right edge of Mars) and … Read More →

Dusty With a Chance of Dust

It’s storm season on Mars. Dusty with a chance of dust is the weather report for Gale crater as a recent planet-scale dust storm rages. On June 10 looking toward the east-northeast crater rim, the Curiosity rover’s Mastcam captured this image of its local conditions so far. Meanwhile over 2,000 kilometers away, the Opportunity rover ceased science operations as the storm grew thicker at its location on the west rim … Read More →

[NASA] Bang and Whoosh!

This HiRISE image from NASA’s Mars Reconnaissance Orbiter (MRO) captures a new, dated (within about a decade) impact crater that triggered a slope streak. via NASA https://ift.tt/2JOOk2f

Little Planet Soyuz

Engines blazing, a large rocket bids farewell to this little planet. Of course, the little planet is really planet Earth and the large rocket is a Soyuz-FG rocket. Launched from the Baikonur Cosmodrome in Kazakhstan on June 6 it carried a Soyuz MS-09 spacecraft into orbit. On board were International Space Station Expedition 56-57 crew members Sergey Prokopyev of Roscosmos, Serena Aunon-Chancellor of NASA and Alexander Gerst of ESA. Their … Read More →

Six Planets from Yosemite

The five naked-eye planets, Mercury, Venus, Mars, Jupiter and Saturn, have been seen since ancient times to wander the night skies of planet Earth. So it could be remarkable that on this night, standing at the side of a clear, calm lake, six planets can be seen with the unaided eye. Have a look. Very bright and easy to spot for skygazers, yellowish Mars is left of a pale Milky … Read More →

[NASA] Shades of Martian Darkness

Science operations for NASA’s Opportunity rover have been temporarily suspended as it waits out a dust storm on Mars. This series of images shows simulated views of a darkening Martian sky blotting out the Sun from NASA’s Opportunity rover’s point of view,. via NASA https://ift.tt/2JVsVo9

Red Cloudbow over Delaware

What kind of rainbow is this? In this case, no rain was involved — what is pictured is actually a red cloudbow. The unusual sky arc was spotted last month during sunset in Rehoboth Beach, Delaware, USA. When the photographer realized that what he was seeing was extraordinary, he captured it with the only camera available — a cell phone. Clouds are made of water droplets, and in a cloudbow … Read More →

[NASA] Evaluating the Noise of Future Aircraft

To address the expected noise levels of future aircraft, NASA’s Commercial Supersonic Technology project is already developing technologies focused on reducing the noise produced by an aircraft’s engine exhaust. via NASA https://ift.tt/2sQ9PG6

Star Size Comparison 2

How big is our Sun compared to other stars? In dramatic and popular videos featured on YouTube, the relative sizes of planets, stars, and even the universe are shown from smallest to largest. The featured video begins with Earth’s Moon and progresses through increasingly larger moons and planets in our Solar System. Soon, the Sun is shown and compared to many of the brighter stars in our neighborhood of the … Read More →