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 the sun. Usually, it's a brooding behemoth. But scientists ...
Astronomy
Aug 14, 2019
96
7879
Much of the carbon in space is believed to exist in the form of large molecules called polycyclic aromatic hydrocarbons (PAHs). Since the 1980s, circumstantial evidence has indicated that these molecules are abundant in space, ...
Astronomy
Mar 18, 2021
13
936
You've probably seen the UV index in the day's weather forecast, and you know it tells you when you need to cover up and wear sunscreen.
Environment
Dec 21, 2021
0
32
New research led by astrophysicists at Durham University, UK, predicts that the Large Magellanic Cloud (LMC) could hit the Milky Way in two billion years' time.
Astronomy
Jan 4, 2019
11
1290
For the first time in nearly three decades of observations, clouds seen on Neptune have all but vanished. Images from 1994 to 2022 of the big blue planet captured from Maunakea on Hawaiʻi Island through the lens of W. M. ...
Astronomy
Aug 17, 2023
3
3962
In 2019, astronomers spotted something incredible in our backyard: a rogue comet from another star system. Named Borisov, the icy snowball traveled 110,000 miles per hour and marked the first and only interstellar comet ever ...
Astronomy
Aug 23, 2021
7
1865
A newly discovered comet could be visible to the naked eye as it shoots past Earth and the Sun in the coming weeks for the first time in 50,000 years, astronomers have said.
Space Exploration
Jan 7, 2023
1
2386
Astronomers have detected a stealthy black hole from its effects on an interstellar gas cloud. This intermediate-mass black hole is one of over 100 million quiet black holes expected to be lurking in the galaxy. These results ...
Astronomy
Mar 1, 2019
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494
If you're standing in the Southern Hemisphere on a clear night, you can see two luminous clouds offset from the Milky Way.
Astronomy
Oct 25, 2018
2
1528
A trio of researchers, two with Pacific Northwest National Laboratory and the other the California Institute of Technology, developed computer simulations suggesting that using geoengineering to cool the planet would not ...
