radar
New View of Venus Reveals Previously Hidden Impact Craters
Think of the Moon and most people will imagine a barren world pockmarked with craters. The same is likely true…
Experimental Radar Technique Reveals the Composition of Titan’s Seas
The Cassini-Huygens mission to Saturn generated so much data that giving it a definitive value is impossible. It's sufficient to…
Next-Generation Radar Will Map Threatening Asteroids
When the Arecibo Observatory dish in Puerto Rico collapsed in 2020, astronomers lost a powerful radio telescope and a unique…
The Technique for Detecting Meteors Could be Used to Find Dark Matter Particles Entering the Atmosphere
Researchers from Ohio State University have come up with a novel method to detect dark matter, based on existing meteor-detecting…
Not Just Sitting Ducks. Maybe Satellites Could Dodge Almost all Space Junk
Kessler syndrome is becoming more and more of a potential hazard as more and more companies vie to place more…
Terrify yourself with LeoLabs’ visualization of satellites and space debris around Earth
Founded in 2016, Menlo Park, California-based LeoLabs, is a mind-blowing company. They have built, and continue to expand, a network…
Astronomy Cast Ep. 504: Radar, Lidar, and Sonar
To really study something, you want to reach out and touch it. But what can you do if you're separated…
2014 JO25 Flies By Earth — See It Tonight
A relatively large potentially hazardous asteroid passed near Earth earlier today. Now, it's visible in small telescopes tonight.
Video of Green Comet 45P Puts You Close To The Action
Watch Comet 45P pirouette end over end in this detailed radar view of the comet's nucleus.
Meet Asteroid 2017 BQ6 — A Giant, Spinning Brick
New asteroid 2017 BQ6 was all elbows when it flew by Earth just a few days ago. Images reveal it…