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Archive for the ‘space’ category: Page 439

Jan 31, 2021

Astronomers: Ancient “Wolfe Disk” Should Never Have Existed

Posted by in category: space

The discovery could throw a wrench in the conventional wisdom surrounding the formation of galaxies.

Jan 31, 2021

Orbit the Moon From the Comfort of Your Home

Posted by in category: space

One small step…just kidding, no steps are required.

Jan 30, 2021

New NASA Challenge Seeks Novel Food System Technologies

Posted by in categories: food, space

There is a prize purse of up to $500000 for the team that can keep the astronauts fed during deep space journeys. Read the details here.

Jan 29, 2021

The UAE’s Hope mission is nearly to Mars, and scientists can’t wait

Posted by in category: space

We’re just counting down the final few days before we arrive to the Red Planet.


With less than two weeks before the country’s first-ever interplanetary mission slips into orbit around Mars, United Arab Emirates scientists can’t wait for the Hope orbiter’s arrival.

Jan 29, 2021

NASA’s Perseverance Mars Rover landing will be must-see TV

Posted by in categories: robotics/AI, space

The next robot on Mars will touch down in a few weeks, and the views will be truly otherworldly.

Jan 29, 2021

5 Surprising Discoveries From NASA’s Mars Curiosity Rover

Posted by in category: space

A look back at the Mars Curiosity rover’s science legacy thus far.

Jan 28, 2021

First evidence that water can be created on the lunar surface

Posted by in category: space

Before the Apollo era, the moon was thought to be dry as a desert due to the extreme temperatures and harshness of the space environment. Many studies have since discovered lunar water: ice in shadowed polar craters, water bound in volcanic rocks, and unexpected rusty iron deposits in the lunar soil. Despite these findings, there is still no true confirmation of the extent or origin of lunar surface water.

Jan 28, 2021

A string of planets in our solar system sparkles in photos from 3 different sun probes

Posted by in category: space

Three sun-studying spacecraft captured stunning images of the planets Venus, Earth, Mars and even Uranus.

Jan 28, 2021

Astronomers Find a Planet Like Jupiter, but It Doesn’t Have any Clouds

Posted by in category: space

Astronomers have found the first Jupiter-like exoplanet with no clouds or haze. It’s an ideal object for further study with the James Webb Space Telescope.


Can you picture Jupiter without any observable clouds or haze? It isn’t easy since Jupiter’s latitudinal cloud bands and its Great Red Spot are iconic visual features in our Solar System. Those features are caused by upswelling and descending gas, mostly ammonia. After Saturn’s rings, Jupiter’s cloud forms are probably the most recognizable feature in the Solar System.

Now astronomers with the Center for Astrophysics | Harvard & Smithsonian (CfA) have found a planet similar in mass to Jupiter, but with a cloud-free atmosphere.

Continue reading “Astronomers Find a Planet Like Jupiter, but It Doesn’t Have any Clouds” »

Jan 26, 2021

Axion Emission Can Explain a New Hard X-Ray Excess from Nearby Isolated Neutron Stars

Posted by in category: space

Axions may be produced thermally inside the cores of neutron stars (NSs), escape the stars due to their feeble interactions with matter, and subsequently convert into x rays in the magnetic fields surrounding the stars. We show that a recently discovered excess of hard x-ray emission in the 2—8 keV energy range from the nearby magnificent seven isolated NSs could be explained by this emission mechanism. These NSs are unique in that they had previously been expected to only produce observable flux in the UV and soft x-ray bands from thermal surface emission at temperatures $\ensuremath{\sim}100\text{ }\text{ }\mathrm{eV}$. No conventional astrophysical explanation of the magnificent seven hard x-ray excess exists at present.