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What is the Best Radiation Shielding for the Surface of Mars

   03 Jun 20:00:25  |  Universe Today

A new study takes a look at potential methods for radiation shielding that could inform the creation of Martian habitats
The post What is the Best Radiation Shielding for the Surface of Mars? appeared first on Universe Today.

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Hubble Sees a Surviving Companion Star After its Partner Went Supernova

   03 Jun 20:00:25  |  Universe Today

When stars die they?re often not alone, and for the first time astronomers have found a companion to a supernova, lingering long after its sibling destroyed itself. Winds of Change In the last moments of a massive star?s life, its interior consists of onion-like layers of elements. At the center sits iron and nickel, the …
Continue reading "Hubble Sees a Surviving Companion Star After its Partner Went Supernova"
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The Stars in Other Galaxies are Generally Heavier Than the Milky Way?s Stars

   02 Jun 20:00:09  |  Universe Today

How many of what kinds of stars live in other galaxies? It seems like a simple question, but it?s notoriously hard to pin down, because astronomers have such a difficult time estimating stellar populations in remote galaxies. Now a team of astronomers has completed a census of over 140,000 galaxies and found that distant galaxies …
Continue reading "The Stars in Other Galaxies are Generally Heavier Than the Milky Way’s Stars"
The post The Stars in Other Galaxies are Generally Heavier Than the Milky Way’s Stars appeared first on Universe Today.

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A Pulsar has Been Found Turning so Slowly Astronomers Didn't Even Think it was Possible: Once Every 76 Seconds

   02 Jun 20:00:08  |  Universe Today

Using the MeerKAT array, an international team of astronomers has detected a new class of radio-emitting neutron star!
The post A Pulsar has Been Found Turning so Slowly Astronomers Didn't Even Think it was Possible: Once Every 76 Seconds appeared first on Universe Today.

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Dark Stars: The First Stars in the Universe Could Have Been Powered by Annihilating Dark Matter

   01 Jun 20:00:07  |  Universe Today

Dark matter doesn?t really do much of anything in the present-day universe. But in the early days of the cosmos there may have been pockets of dark matter with high enough density that they provided a source of heat for newly forming stars. Welcome to the strange and wonderful world of ?dark stars.? A Dance …
Continue reading "Dark Stars: The First Stars in the Universe Could Have Been Powered by Annihilating Dark Matter"
The post Dark Stars: The First Stars in the Universe Could Have Been Powered by Annihilating Dark Matter appeared first on Universe Today.

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NASA Will Rent Future Spacesuits From Longtime Supplier and Newcomer

   01 Jun 20:00:07  |  Universe Today

NASA has struck deals with two commercial teams to provide the spacesuits destined for use when astronauts return to the moon by as early as 2025 ? and there’s an extra twist that might have sounded alien to the Apollo moonwalkers a half-century ago. This time, NASA won’t own the suits. Under the terms of …
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The post NASA Will Rent Future Spacesuits From Longtime Supplier and Newcomer appeared first on Universe Today.

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Hubble Sees Two Spiral Galaxies Together

   31 May 20:00:12  |  Universe Today

Two peculiar spiral galaxies are in the latest image release from the Hubble Space Telescope. The two galaxies, collectively known as Arp 303, are located about 275 million light-years away from Earth. IC 563 is the odd-shaped galaxy on the bottom right while IC 564 is a flocculent spiral at the top left. Fittingly, these …
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Why are Uranus and Neptune Different Colors? Haze

   31 May 20:00:11  |  Universe Today

Way back in the late 1980s, the Voyager 2 spacecraft visited Uranus and Neptune. During the flybys, we got to see the first close-up views of those ice giants. Even then, planetary scientists noticed a marked color difference between the two. Yes, they both sport shades of blue. But, if you look closely at Uranus, …
Continue reading "Why are Uranus and Neptune Different Colors? Haze"
The post Why are Uranus and Neptune Different Colors? Haze appeared first on Universe Today.

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Planets in Binary Systems Could be Habitable, But They?d Form Differently

   30 May 20:00:11  |  Universe Today

Most of the stars in the Milky Way are single stars. But between one-third and one-half of them are binary stars. Can habitable planets form in these environments? New research shows that habitable planets could exist around binary stars, but they would form differently than worlds around single stars. A young binary star system about …
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The post Planets in Binary Systems Could be Habitable, But They’d Form Differently appeared first on Universe Today.

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Gaze Into the Heart of a Grand Spiral Galaxy

   30 May 20:00:11  |  Universe Today

Here?s Hubble doing what Hubble does best. Some of the Hubble Space Telescope?s most famous and stunning images are of distant galaxies, and this one is drop-dead gorgeous too. This new image features the Grand Design Spiral, NGC 3631, which is located about 53 million light-years away in the direction of the constellation Ursa Major. …
Continue reading "Gaze Into the Heart of a Grand Spiral Galaxy"
The post Gaze Into the Heart of a Grand Spiral Galaxy appeared first on Universe Today.

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