More Pictures of Planet-Forming Disks Around Young Stars

The fifteen images of protoplanetary disks, captured with ESO's Very Large Telescope Interferometer. CREDIT Jacques Kluska et al.

Astronomy is advancing to the point where we can see planets forming around young stars. This was an unthinkable development only a few years ago. In fact, it was only two years ago that astronomers captured the first image of a newly-forming planet.

Now there are more and more studies into how planets form, including a new one with fifteen images of planet-forming disks around young stars.

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A Fast Radio Burst Has Been Detected From Inside The Milky Way

An illustration fast radio bursts in the night sky. Credit: James Josephides/Mike Dalley

Now and then there are bright flashes of radio light in the sky, and they are bothering astronomers. They are called Fast Radio Bursts (FRBs), and they’re like the chirp of a smoke alarm that needs its battery changed. They last for such a short time that it’s difficult to track down the source. They have become a nagging mystery in astronomy.

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Our Review of Stellina: a ‘Smart Telescope’ for 21st Century Astronomy

Stellina may usher in a revolution in amateur astronomy.

It’s a common scene at star parties, post-Christmas. As darkness falls, someone approaches us with a new telescope, often in still unassembled. “I can’t figure this thing out,” is the inevitable refrain. “Can you show me how to use this @#$%! thing?”

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In the far future, the universe will be mostly invisible

superflare
An artist's conception of a superflare event, on a dwarf star. Image credit: Mark Garlick/University of Warwick

If you look out on the sky on a nice clear dark night, you’ll see thousands of intense points of light. Those stars are incredibly far away, but bright enough to be seen with the naked eye from that great distance – a considerable feat. But what you don’t see are all the small stars, the red dwarfs, too small and dim to be seen at those same distances.

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SpaceX Describes Exactly How They’re Planning to Make Starlink Satellites Less Visible From Earth

Starlink
An artist's conception of Starlink in orbit. Credit: SpaceX

In 2015, Elon Musk announced that his company, SpaceX, would be deploying satellites to orbit that would provide high-speed broadband internet access to the entire world. Known as Starlink, SpaceX began deploying this constellation in May of 2019 with the launch of the first 60 satellites. As of April 22nd, a total of 422 satellites have been added to the Starlink constellation, and the response hasn’t been entirely positive.

In addition to fears that we’re adding to the problem of “space junk,” there are also those who’ve expressed concern that Starlink and other constellations could have a negative impact on astronomy. In response, SpaceX recently announced that it will be instituting changes in how the satellites are launched, how they orbit the Earth, and even how reflective they are in order to minimize the impact they have on astronomy.

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Astronomers Can Actually See the Clouds and Weather on Brown Dwarf 6.5 Light-Years Away

This artist's conception illustrates the brown dwarf named 2MASSJ22282889-431026, observed by NASA's Hubble and Spitzer space telescopes. Brown dwarfs are more massive and hotter than planets but lack the mass required to become stars. Image credit: NASA
This artist's conception illustrates the brown dwarf named 2MASSJ22282889-431026, observed by NASA's Hubble and Spitzer space telescopes. Brown dwarfs are more massive and hotter than planets but lack the mass required to become stars. Image credit: NASA

Brown dwarfs are in a tough spot. Not quite a star, not quite a planet, they occupy a place between gas giants and stars. They have more mass than gas giants like Jupiter, but not enough to ignite fusion and become a star.

But astronomers still study them. How could they resist?

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The Atmosphere On Venus Rotates Faster than the Planet, and Now Astronomers Think They Know Why

The planet Venus, as imaged by the Magellan mission. Credit: NASA/JPL

Venus is unique—almost—in our Solar System because it’s what’s known as a “super-rotator.” That means that Venus’ atmosphere rotates faster than the planet itself. Only Saturn’s moon Titan has the same characteristic.

Scientists have been trying to figure out what causes this super-rotation, and now an international team of researchers might have figured it out.

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Weekly Space Hangout: May 6, 2020 – Human Exploration of the Moon and Mars

Hosts: Fraser Cain (universetoday.com / @fcain)

Dr. Morgan Rehnberg (MorganRehnberg.com / @MorganRehnberg & ChartYourWorld.org)

Beth Johnson (@planetarypan)

Veranika Klimovich ( @VeranikaSpace)

This week we welcome Dr. Pascal Lee to the Weekly Space Hangout. Pascal is chairman of the Mars Institute, planetary scientist at the SETI Institute, and director of the NASA Haughton-Mars Project (HMP) at NASA Ames. He holds an ME in geology and geophysics from the University of Paris, and a PhD in astronomy and space sciences from Cornell.

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Astronomers Find a Planet With Three Times the Mass of Jupiter

Astronomers have discovered the exoplanet Kepler-88 d, a planet three times more massive than Jupiter. Illustration Credit: W. M. KECK OBSERVATORY/ADAM MAKARENKO

Jupiter is the Boss.

Well, in terms of planets in our Solar System it is. It’s played a huge role in shaping the Solar System due to its mass and its gravity. Here’s a few ways it’s shaped our system:

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