When it Comes to Gamma Radiation, the Moon is Actually Brighter Than the Sun

NASA's Fermi Gamma-Ray Space Telescope captures the hellish glow of gamma rays coming from the Moon. Image Credit: NASA/DOE/Fermi LAT Collaboration

The eerie, hellish glow coming from the Moon may seem unreal in this image, since it’s invisible to our eyes. But instruments that detect gamma rays tell us it’s real. More than just a grainy, red picture, it’s a vivid reminder that there’s more going on than meets human eyes.

It’s also a reminder that any humans that visit the Moon need to be protected from this high-energy radiation.

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Why Build Big Rockets at All? It’s Time for Orbital Refueling

Stainless Steel Starship on the Moon. Credit: SpaceX

On Tuesday, July 30th, NASA announced 19 different partnerships with 13 different companies to use their expertise to help them develop space technologies, from advanced communications systems to new methods of entry, descent and landing.

Instead of contracting out specific projects, NASA will make its employees, facilities, hardware and software available to these companies, for free.

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An Astrophotographer Noticed a Chunk of Ice Orbiting Comet 67P in Rosetta’s Photos

"Churymoon," comet 67P/Churymuov-Gerasimenko's tiny, icy companion. It was brought to light by Spanish astrophotographer Jacint Roger who was working with the archive of images from the ESA's Rosetta mission. Image Credit: ESA/Rosetta/MPS/OSIRIS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA/J. Roger (CC BY-SA 4.0)

The European Space Agency’s (ESA) Rosetta mission spent two years at the comet 67P/Churyumov-Gerasimenko. At the end of September 2016, its mission was ended when the spacecraft was sent on a collision course into the comet. During its time at comet 67P, it captured a vast amount of images.

The ESA made all those images freely available at their Rosetta website, and now an astro-photographer working with those images has found something interesting: a chunk of ice travelling through space with 67P.

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Neutron Star Suffers a “Glitch”, Gives Astronomers a Glimpse Into How They Work

An image of the Vela pulsar in combined optical and xray. Image Credit: NASA/Chandra

What, exactly, is the inside of a neutron star like?

A neutron star is what remains after a massive star goes supernova. It’s a tightly-packed, ultra-dense body made of—you guessed it—neutrons. Actually, that’s not absolutely true.

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Rocket Lab is Going to try to Re-use its First Stage Booster, Catching it in Mid-air With a Helicopter

Rocket Lab's protoytpe Electron rocket taking off from the company's Launch Complex 1 in New Zealand on Wednesday, May 24th. Credit: rocketlabusa.com

In 2006, Peter Beck founded the US and New Zealand-based aerospace company Rocket Lab with the vision of reducing the costs of individual launches. Whereas companies like SpaceX and Blue Origin have sought to do this through the development of reusable rockets, Beck’s vision was to create a launch service that would use small rockets to send light payloads into orbit with regular frequency.

However, in a recent statement, Mr. Beck revealed that his company plans to begin recovering and reusing the first stage of its Electron launch vehicle. This change in direction will allow Rocket Lab to further increase the frequency of its launches by eliminating the need to build first stage rockets from scratch for every individual mission.

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Milky Way’s Black Hole Just Flared, Growing 75 Times as Bright for a Few Hours

Illustration of the supermassive black hole at the center of the Milky Way. Credit: NRAO/AUI/NSF
Illustration of the supermassive black hole at the center of the Milky Way. It's huge, with over 4 times the mass of the Sun. But ultramassive black holes are even more massive and can contain billions of solar masses. Image Credit: Credit: NRAO/AUI/NSF

Even though the black hole at the center of the Milky Way is a monster, it’s still rather quiet. Called Sagittarius A*, it’s about 4.6 million times more massive than our Sun. Usually, it’s a brooding behemoth. But scientists observing Sgr. A* with the Keck Telescope just watched as its brightness bloomed to over 75 times normal for a few hours.

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Spacecraft Gyroscopes And Reaction Wheels. You Can Never Have Enough

On January 8, 2019, the Wide Field Camera 3 on the Hubble Space Telescope suspended operations due to a hardware problem. Image Credit: NASA/STScI.
On January 8, 2019, the Wide Field Camera 3 on the Hubble Space Telescope suspended operations due to a hardware problem. Image Credit: NASA/STScI.

It’s amazing to think there are telescopes up in space, right now, directing their gaze at distant objects for hours, days and even weeks. Providing a point of view so stable and accurate that we can learn details about galaxies, exoplanets and more.

And then, when the time is up, the spacecraft can shift its gaze in another direction. All without the use of fuel.

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Hardy Tardigrades on Board Israel’s Beresheet Lander Probably Survived the Crash

A Full Moon, as imaged by NASA's Lunar Reconnaissance Orbiter. Credit: NASA Goddard's Scientific Visualization Studio

When SpaceIL’s Beresheet lander crashed into the Moon, it was a bitter-sweet moment for Israel’s space exploration aspirations. The privately-built spacecraft was punching above its weight class by proceeding on its journey to the Moon. Unfortunately, it crashed, ending the dream.

But Beresheet carried some unusual passengers, as part of an unusual, yet visionary, sub-mission: tardigrades.

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Astronomers Uncover Dozens of Previously Unknown Ancient and Massive Galaxies

The ALMA array in Chile. Once ALMA was added to the Event Horizon Telescope, it increased the EHT's power by a factor of 10. Image: ALMA (ESO/NAOJ/NRAO), O. Dessibourg

For decades, astronomers have been trying to see as far as they can into the deep Universe. By observing the cosmos as it was shortly after the Big Bang, astrophysicists and cosmologists hope to learn all they can about the early formation of the Universe and its subsequent evolution. Thanks to instruments like the Hubble Space Telescope, astronomers have been able to see parts of the Universe that were previously inaccessible.

But even the venerable Hubble is incapable of seeing all that was taking place during the early Universe. However, using the combined power of some of the newest astronomical observatories from around the world, a team of international astronomers led by Tokyo University’s Institute of Astronomy observed 39 previously-undiscovered ancient galaxies, a find that could have major implications for astronomy and cosmology.

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