Meteorites are Contaminated Quickly When They Reach Earth
On Earth, geologists study rocks to help better understand the history of our planet. In contrast, planetary geologists study meteorites…
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…
All of Jupiter's Large Moons Have Auroras
New observations have revealed that all four of Jupiter's largest moons have aurorae, and they are spectacular!
Some Elements Arrived on Earth by Surfing Supernova Shock Waves
When stars die, they spread the elements they've created in their cores out to space. But, other objects and processes…
Follow Perseverance on Its Mars Journey With This Two-Year Timelapse
Hard to believe, but the Perseverance Rover has begun its third year exploring Mars. On Feb. 18, 2021, Perseverance rover…
If Planet 9 has Moons, Would That Help Us Find It?
Planet 9 continues to remain elusive. This potential super-Earth-sized object in the outer Solar System is only hypothetical, as something…
Happy Presidents Day: George Washington’s Hair Set to Go to Deep Space
If it turns out that a future extraterrestrial invasion force is headed by a clone of George Washington, we'll have…
Meteor Explodes Over English Channel, Moon Breakthrough, Dark Matter Galaxy
Blue Origin wants to build solar panels on the Moon, out of the Moon, SpaceX sold its floating landing pads,…
ESA is Building an Early Warning System for Dangerous Asteroids
The European Space Agency is working on a new mission that would act as an early warning system for dangerous,…
Are Black Holes the Source of Dark Energy?
In a series of papers, an international team claims they've found the first observational evidence that supermassive black holes are…