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Researchers Generate an Entire Virtual Universe and Make it Available for Download (if you Have 100 Terabytes of Free Hard Drive Space)

   13 Sep 00:00:17  |  Universe Today

You could fit an entire simulated universe in your pocket, if you have $40,000 to spare.
The post Researchers Generate an Entire Virtual Universe and Make it Available for Download (if you Have 100 Terabytes of Free Hard Drive Space) appeared first on Universe Today.

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Doomed Satellite was Equipped With a Drag Sail to Deorbit it After its Mission was Complete

   12 Sep 00:00:07  |  Universe Today

A team at Purdue University developed a drag sail to attach to satellites to help them de-orbit to combat space debris. Unfortunately, the rocket carrying the test device, launched by Firefly Aerospace, exploded shortly after launch. Space junk is a growing problem, with tens of thousands of small objects constantly whirling around the Earth. Each …
Continue reading "Doomed Satellite was Equipped With a Drag Sail to Deorbit it After its Mission was Complete"
The post Doomed Satellite was Equipped With a Drag Sail to Deorbit it After its Mission was Complete appeared first on Universe Today.

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ALMA?s new Receivers Will let it see Longer Wavelengths, Peering Closer to the Beginning of the Universe

   12 Sep 00:00:06  |  Universe Today

The ALMA telescope is getting a new set of receivers, enabling it to detect wavelengths down to 8.5 mm. These wavelengths are crucial for observations of the transformative epoch of reionization, when the first stars to appear in the universe unleashed a fury of radiation. ALMA, the Atacama Large Millimeter/sub-millimeter Array, is located on the …
Continue reading "ALMA’s new Receivers Will let it see Longer Wavelengths, Peering Closer to the Beginning of the Universe"
The post ALMA’s new Receivers Will let it see Longer Wavelengths, Peering Closer to the Beginning of the Universe appeared first on Universe Today.

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There Should be More Material Left Over From Bombardment Eras. Maybe the Sun Blew it all Away

   11 Sep 00:00:22  |  Universe Today

The early solar system was an especially violent place. The terrestrial planets (Mercury, Venus, Earth, and Mars) likely formed by suffering countless collisions between planetesimals. But the material left over from all those collisions should have remained in orbit around the sun, where it would?ve eventually found itself in the asteroid belt. But the belt …
Continue reading "There Should be More Material Left Over From Bombardment Eras. Maybe the Sun Blew it all Away?"
The post There Should be More Material Left Over From Bombardment Eras. Maybe the Sun Blew it all Away? appeared first on Universe Today.

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Why are Rubble Pile Asteroids Shaped Like Diamonds

   11 Sep 00:00:21  |  Universe Today

Scientists are fortunate enough to have detailed, close-up views of the near-Earth asteroids Bennu and Ryugu. Both asteroids have a diamond shape, for some reason. Why? Up until now, it’s been a puzzle. Now a team of scientists has tackled the question and may have come up with the answer. Asteroids are an ongoing target …
Continue reading "Why are Rubble Pile Asteroids Shaped Like Diamonds?"
The post Why are Rubble Pile Asteroids Shaped Like Diamonds? appeared first on Universe Today.

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Protoplanetary Disks Throw Out More Material Than Gets Turned Into Planets

   10 Sep 00:00:23  |  Universe Today

When a young solar system gets going it’s little more than a young star and a rotating disk of debris. Accepted thinking says that the swirling debris is swept up in planet formation. But a new study says that much of the matter in the disk could face a different fate. It may not have …
Continue reading "Protoplanetary Disks Throw Out More Material Than Gets Turned Into Planets"
The post Protoplanetary Disks Throw Out More Material Than Gets Turned Into Planets appeared first on Universe Today.

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White Dwarfs can Continue Burning Hydrogen, Even After They?re Dead

   10 Sep 00:00:22  |  Universe Today

White dwarfs are supposed to be dead remnants of stars, doomed to simply fade away into the background. But new observations show that some are able to maintain some semblance of life by wrapping themselves in a layer of fusing hydrogen. White dwarfs are the dense leftover cores of sunlike stars. They are exposed to …
Continue reading "White Dwarfs can Continue Burning Hydrogen, Even After They’re Dead"
The post White Dwarfs can Continue Burning Hydrogen, Even After They’re Dead appeared first on Universe Today.

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This is a 3D-Printed Steel Floor Prototype for a Lunar Habitat

   09 Sep 00:00:16  |  Universe Today

The ESA's has unveiled a key piece of their proposed lunar habitat, a 3D-printed steel floor frame.
The post This is a 3D-Printed Steel Floor Prototype for a Lunar Habitat appeared first on Universe Today.

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Ground-Based Observatories Could use Starshades to see Planets too

   09 Sep 00:00:16  |  Universe Today

All hail the occulter: an orbiting starshade for ground-based telescopes. Ground-based telescopes and orbiting observatories have revealed thousands of exoplanets orbiting other stars. And while the techniques used by those instruments have proven to be incredibly powerful in discovery, they are decidedly less capable in characterization. That’s because most exoplanet-hunting techniques rely on indirect measurements …
Continue reading "Ground-Based Observatories Could use Starshades to see Planets too"
The post Ground-Based Observatories Could use Starshades to see Planets too appeared first on Universe Today.

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A Black Hole or Neutron Star Fell Into Another Star and Triggered a Supernova

   08 Sep 00:00:33  |  Universe Today

What happens when you slam a neutron star (or black hole, take your pick) into a companion star? A supernova, that’s what. And for the first time ever, astronomers think they’ve spotted one. Back in 2014 the MAXI instrument aboard the International Space Station detected a flare of X-rays from a dwarf, star-forming galaxy sitting …
Continue reading "A Black Hole or Neutron Star Fell Into Another Star and Triggered a Supernova"
The post A Black Hole or Neutron Star Fell Into Another Star and Triggered a Supernova appeared first on Universe Today.

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