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Astronomers detect unprecedented collection of pulsating red giants
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New Spin on Planet Formation Mysteries
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June 4, 2021
Here’s what the biggest giant planet in our solar system, Jupiter, looks like. The Juno spacecraft captured this image during its 31st close flyby of Jupiter on December 30, 2020. The storm known as the Great Red Spot is visible on the horizon, nearly rotated out of view. Citizen scientist Tanya Oleksuik created this color-enhanced image using data from the JunoCam camera. Image via NASA.
Our solar system is normal
In late May 2021, astronomers released new results in a 30-year census of planetary systems beyond our own. The results show that most are arranged much like
our solar system. That is, most giant exoplanets aren’t close to their parent stars, but instead live in the suburbs of their systems. That’s contrary to what astronomers thought when first discovering giant exoplanets in the 1990s. For awhile, they thought hot Jupiters – giant planets close to their stars – might be the norm. Now the California Legacy Survey, which began in the 1990s, has
Oddball supernova reveals star s death throes before exploding CNN 3 hrs ago By Ashley Strickland, CNN © Aya Tsuboi/Kavli IPMU This artist s illustration shows a potential stellar companion stripping hydrogen from the star that exploded into supernova 2019yvr.
Stars experience very violent lives that usually end in dazzling explosions, and scientists have tried for years to determine what happens to massive stars just before this bombastic finale.
Now, an unusual supernova is helping researchers piece more of that stellar puzzle together.
An international team of researchers used NASA s Hubble Space Telescope to observe a massive yellow star 2.5 years before it exploded in a supernova. The star was located 35 million light-years from Earth in the Virgo galaxy cluster.
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