Primordial Asteroids That Never Suffered Massive Collisions all Seem to be Larger Than 100 km. Why?
The early asteroids had a similar size, and this could be due to turbulence in the early solar system.
What Would Raindrops be Like on Other Worlds?
Precipitation is much more widespread throughout that solar system than commonly assumed. Obviously it rains water on Earth. But it…
Jupiter Could Make an Ideal Dark Matter Detector
So, you want to find dark matter, but you don't know where to look? A giant planet might be exactly…
Perseverance Takes a Selfie With Ingenuity. It’s Almost Time to fly
Perseverance is having a proud parent moment in this image, looking like it’s waiting with a child at the bus…
What are the Best Ways to Search for Technosignatures?
The search for extraterrestrial intelligence (SETI) has long roots in human history. With the advent of modern technologies, scientists were…
An Intermediate-Mass Black Hole Discovered Through the Gravitational Lensing of a Gamma-ray Burst
An intermediate mass black hole was discovered by its chance alignment with a gamma ray burst.
Perseverance Captured This Image of a “Rainbow” on Mars, but it’s just a Lens Flare in the Rover’s Camera
Did the Perseverance rover capture a rainbow on Mars? This image, from the rover’s left rear Hazard Camera, sure looks…
Mars Helicopter Survives its First Night on Mars is Getting Ready to Fly
NASA's Ingenuity Helicopter survived its first night on the Martian surface and is preparing for its first test flight.
Here’s a Strange Rock That Perseverance Shot With its Laser
Perseverance has been busy lately. After testing its systems out, taking the first sound recording ever on the Red Planet,…
Lunar Gateway Will Maintain its Orbit With a 6 kW ion Engine
The ionic propulsion system that will allow the Lunar Gateway to orbit the Moon just got its first test, and…