Radio Astronomy
A 500-Meter-Long Asteroid Flew Past Earth, and Astronomers Were Watching
An asteroid the size of the Empire State Building flew past Earth in early February, coming within 1.8 million km…
The World's Largest Radio Telescope Just Scanned 33 Exoplanets for a Signal From Aliens
Using China's FAST telescope and a new technique, an international team of astronomers scanned 33 exoplanets for signs of extraterrestrial…
Astronomers are Working on a 3D map of Cosmic Dawn
The latest results from the HERA Collaboration suggest how the earliest galaxies in the Universe slowly dispelled the cosmic "Dark…
Astronomers Find 25 Fast Radio Bursts That Repeat on a Regular Basis
Researchers with the CHIME/FRB Collaboration have announced the discovery of 25 new repeating FRBs, almost doubling the number of known…
Arecibo Studied 191 Asteroids That Flew Past the Earth. All the Data are Available in a new Paper
Even from beyond the grave, Arecibo is still contributing to new discoveries. Back in October, researchers released a "treasure trove…
Just Four Robots Could Deploy a Huge Radio Telescope on the Far Side of the Moon
For decades, astronomers have advocated building radio telescopes on the far side of the Moon. This “radio-quiet” zone always faces…
A Black Hole Burps out Material, Years After Feasting on a Star
When observing a black hole that devoured a star three years earlier, an international team of astronomers noticed it "burping"…
One Exciting way to Find Planets: Detect the Signals From Their Magnetospheres
Some exoplanets could be discovered by tuning into their radio transmissions.
Snooping on Alien Messages Passing Through the Solar System
Researchers at Penn State University have studied a new technique that could use a star’s ability to focus and magnify…
Comprehensive Sky Survey Finds Over a Million New Objects
In perfect viewing conditions, with good eyesight and clear, dark skies, the average person can see between 2,500 and 5,000…