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Archive for the ‘space’ category: Page 595

Jun 28, 2020

Spectacular New Images Capture the Space Station Cruise Across the Sun

Posted by in category: space

Moving at eight kilometers (five miles) per second, the International Space Station (ISS) circles our planet every 90 minutes. In a 24-hour period, crew members on the ISS experience 16 sunrises and sunsets. Despite how often the station passes directly between Earth and the Sun, capturing an image of the ISS transiting our nearest star is rare.

On June 24, 2020, NASA photographer Joel Kowsky captured such an occurrence from Fredericksburg, Virginia. The image above is a composite, made from six frames, and shows the ISS in silhouette as it moved from right to left across the solar disk while orbiting 400 kilometers (250 miles) above Earth.

The image below shows the position of the ISS in its orbit as Kowsky snapped his photos at approximately 1:15 p.m. U.S. Eastern Daylight Time. The transit lasted approximately 0.54 seconds and was captured while his camera was shooting at 10 frames per second. Watch a video of the transit below.

Jun 28, 2020

Scientists Have Demonstrated Quantum Entanglement on a Tiny Satellite Orbiting Earth

Posted by in categories: internet, particle physics, quantum physics, space

In the strange field of quantum physics, quantum entanglement – what Einstein called “spooky action at a distance” – stands out as one of the most intriguing phenomena. And now scientists just managed to successfully demonstrate it again, this time onboard a CubeSat satellite orbiting Earth.

Quantum entanglement is where two particles become inextricably linked across a distance, so that one serves as an indicator of the other in a certain aspect. That unbreakable link might one day form the basis of a super-fast, super-secure quantum internet.

While a quantum internet is still some way off, if we want to make it work, it’s going to require something other than optical fibres.

Jun 27, 2020

Space Station astronaut loses mirror during maintenance spacewalk

Posted by in category: space

Part of NASA astronaut Chris Cassidy’s spacesuit breaks off and floats away into space.

Jun 27, 2020

Designing A Mars Habitat Concept

Posted by in categories: habitats, space

Click on photo to start video.

They need to make the first Mars colony look like this! 🔴 🚀.

Jun 27, 2020

Facebook releases AI development tool based on NetHack

Posted by in categories: entertainment, robotics/AI, space

NetHack, which was first released in 1987, is more sophisticated than might be assumed. It tasks players with descending more than 50 dungeon levels to retrieve a magical amulet, during which they must use hundreds of items and fight monsters while contending with rich interactions between the two. Levels in NetHack are procedurally generated and every game is different, which the Facebook researchers note tests the generalization limits of current state-of-the-art AI.


Facebook researchers believe the game NetHack is well-tailored to training, testing, and evaluating AI models. Today, they released the NetHack Learning Environment, a research tool for benchmarking the robustness and generalization of reinforcement learning agents.

For decades, games have served as benchmarks for AI. But things really kicked into gear in 2013 — the year Google subsidiary DeepMind demonstrated an AI system that could play Pong, Breakout, Space Invaders, Seaquest, Beamrider, Enduro, and Q*bert at superhuman levels. The advancements aren’t merely improving game design, according to folks like DeepMind cofounder Demis Hassabis. Rather, they’re informing the development of systems that might one day diagnose illnesses, predict complicated protein structures, and segment CT scans.

Jun 26, 2020

Incredible time-lapse video shows 10 years of the sun’s history in 6 minutes

Posted by in category: space

NASA combined 10 years of solar observations into a single, gorgeous time-lapse video.

Jun 26, 2020

Launch of NASA’s next Mars rover delayed again by ‘contamination concern’ on the ground

Posted by in category: space

The launch of NASA’s next Mars rover has been delayed to no earlier than July 22 due to a contamination issue with ground support equipment, the space agency said today (June 24).

NASA’s Mars rover Perseverance was scheduled to launch toward the Red Planet on July 20 from a pad at the Cape Canaveral Air Force Station in Florida. But a problem cropped up as engineers worked to encapsulate the rover in the nosecone of its Atlas V rocket, which was built by United Launch Alliance.

Jun 26, 2020

Crews create a blast to take the Deep Underground Neutrino Experiment to the next stage

Posted by in categories: particle physics, space

It started with a blast.

On June 23, construction company Kiewit Alberici Joint Venture set off explosives 3,650 feet beneath the surface in Lead, South Dakota, to begin creating space for the international Deep Underground Neutrino Experiment, hosted by the Department of Energy’s Fermilab.

The blast is the start of underground activity for the experiment, known as DUNE, and the infrastructure that powers and houses it, called the Long-Baseline Neutrino Facility, or LBNF.

Jun 26, 2020

Two Venus-Zone Planets Found Orbiting Nearby Red Dwarf

Posted by in category: space

Astronomers have discovered and validated two small exoplanets orbiting the nearby red dwarf star TOI-1266.

Jun 26, 2020

NASA Scientist Simulates a Kaleidoscope of Sunsets on Other Worlds

Posted by in category: space

Click on photo to start video.

Have you ever wondered what sunsets on other worlds might look like?

Now you can find out, thanks to simulations created by Goddard scientist Geronimo Villanueva.

Continue reading “NASA Scientist Simulates a Kaleidoscope of Sunsets on Other Worlds” »