Astronomy
The Closest Star Cluster to Earth is Being Dismantled in Front of our Eyes
Star clusters are interesting inhabitants of the sky. They vary in sizes, distances, and number of stars, but almost all…
Simulating the Universe a Trillionth of a Second After the Big Bang
The Big Bang remains the best way to explain what happened at the beginning of the Universe. However, the…
Newly Forming Stars Don’t Blast Away Material as Previously Believed. So Why Do They Stop Growing?
We thought we understood how stars are formed. It turns out, we don't. Not completely, anyway. A new study, recently…
A Very Powerful Solar Storm Hit the Earth Back in 1582
"A great fire appeared in the sky to the North, and lasted three nights," wrote a Portuguese scribe in early…
Rocks and Other Features at Perseverance’s Landing Site are Getting Navajo Names
In conjunction with the Navajo Nation, the Perseverance mission team is designating features in the Jezero Crater with Najavo names
New Binocular Nova Cas 2021 Flares in Cassiopeia
A ‘new star’ erupted into visibility over the past weekend, and continues to brighten.
An All-Sky X-Ray Survey Finds the Biggest Supernova Remnant Ever Seen
Our sky is missing supernovas. Stars live for millions or billions of years. But given the sheer number of stars…
Oumuamua Isn’t an Alien Probe, Because Aliens can Learn Everything They Need About us With Telescopes
A new study offers a new take on why 'Oumuamua could not have been an alien probe: a lack of…
Tracking Satellites Through GEOSat Eclipse Season
You can spot satellites in far-flung orbits… if you know exactly where and when to look.
Do Supermassive Black Holes Come From Supermassive Stars?
The gargantuan supermassive black holes at the center of seemingly every galaxy are among the most fascinating and extreme objects…