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Archive for the ‘space’ category: Page 846

Sep 3, 2018

Mystery cold spot on Jupiter’s moon Europa could be ‘almost anything’

Posted by in category: space

The first full temperature map of Jupiter’s icy moon Europa has revealed one spot that seems colder than anywhere else on the surface — but we have no clue why.

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Sep 1, 2018

Artificial intelligence spots obesity from space

Posted by in categories: biotech/medical, health, robotics/AI, space

Satellite images could help target public health interventions.

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Sep 1, 2018

Mars Opportunity rover will have 45 days to phone home

Posted by in categories: solar power, space, sustainability

As a planet-wide dust storm enveloped Mars, many were concerned about the fate of the Opportunity rover. After all, Opportunity is dependent on solar panels; the opacity of the dust storm meant that she wasn’t getting enough light to stay powered. The team at NASA’s Jet Propulsion Laboratory last heard from Opportunity on June 10th. Now, the storm is lifting, and once its opacity reaches a tau level of 1.5, the little rover will have 45 days to respond to the team’s signals. Otherwise, NASA will stop actively listening for the rover.

The tau measures the amount of dust and particulate in the Martian atmosphere. The team hopes that, once the skies have cleared enough and the rover has recharged its batteries, Opportunity will be able to hear and respond to the signals that Earth is sending its way. If 45 days have passed without a response, the team will cease its active efforts to recover the rover. “If we do not hear back after 45 days, the team will be forced to conclude that the Sun-blocking dust and the Martian cold have conspired to cause some type of fault from which the rover will more than likely not recover,” said John Callas, Opportunity’s project manager, in a statement.

That doesn’t mean NASA will have fully given up on Opportunity, though. After all, the rover was originally tasked with a 90-day mission and is still working almost 15 years later. The team will continue “passive listening efforts” — presumably stop sending the rover active signals through the Deep Space Network, but monitor in case Opportunity reaches out first — for an additional several months.

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Aug 31, 2018

This Venus Flytrap-like robot mouth could help military retrieve drones fast

Posted by in categories: drones, military, robotics/AI, space

It’s designed to make collecting drones of all sizes much easier.

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Aug 31, 2018

Scientists Map Out How to Nudge Small Asteroids into Earth’s Orbit

Posted by in category: space

A University of Glasgow team explores the subtle art of capturing asteroids without killing everybody.

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Aug 31, 2018

What If A Rogue Planet Entered Our Solar System?

Posted by in category: space

Scientists found a mysterious rogue planet roaming aimlessly outside our solar system. What if it came closer?

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Aug 31, 2018

A vibrant Space Program will inspire millions of children

Posted by in category: space

Robert Zubrin made his presentation to the Mars Society in 2018.

A vibrant space program will inspire millions of children to study science and technology so that they can be a space pioneer. Children are not inspired by lot of testing.

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Aug 30, 2018

Our Motion Through Space Isn’t A Vortex, But Something Far More Interesting

Posted by in category: space

One of the most popular viral videos about space is dead wrong. But it gives us a chance to learn something incredible.

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Aug 30, 2018

Physicists Just Made the Most Precise Measurement Ever of Gravity’s Strength

Posted by in categories: physics, space

Gravity might feel strong if you drop a bowling ball on your feet, but is in fact the weakest force. Compare it to electromagnetism: the pull of all the Earth’s gravity can’t stop you from picking up a paperclip with a refrigerator magnet. That weakness makes gravity incredibly difficult to measure.

A team of scientists in China are reporting that they have now performed the most precise measurement of gravity’s strength yet by measuring G, the Newtonian or universal gravitational constant. G relates the gravitational attraction between two objects to their masses and the distance between them. The new measurement is important both for high-powered atomic clocks as well as the study of the universe, earth science, or any kind of science that relies on gravity in some way.

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Aug 30, 2018

Small leak discovered on Russian side of International Space Station, NASA says

Posted by in category: space

Small leak discovered on Russian side of International Space Station, NASA says originally appeared on abcnews.go.com

A small pressure leak was discovered on the International Space Station, according to NASA.

Flight controllers at mission control centers in Houston and Moscow began seeing signs of the leak Wednesday night when the six-member crew aboard the orbital outpost were asleep. Flight controllers monitored the situation until the crew awakened at their normal time Thursday morning since they were in “no danger,” NASA said in a press release.

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