Building a Worldwide Map of Light Pollution
As someone that has always lived in the UK countryside I am no stranger to the glory of a dark…
Life Might Thrive on the Surface of Earth for an Extra Billion Years
The Sun is midway through its life of fusion. It's about five billion years old, and though its life is…
Exoplanets Could be Hiding Their Atmospheres
One of the most intriguing planetary systems is TRAPPIST-1, with several Earth-sized worlds orbiting a red dwarf star, and astronomers…
Actually, Ceres Might Have Formed in the Asteroid Belt After All
Dwarf planet Ceres is the largest planetary body in the Asteroid Belt. For a long time, scientists thought it was…
Metal Part 3D Printed in Space for the First Time
Additive manufacturing, also known as 3D printing, has had a profound impact on the way we do business. There is…
NASA Watches a Peanut-Shaped Asteroid Drift Past Earth
Peanuts! Get your peanuts here! The Solar System has been passing out peanuts lately in the form of two different…
Did Mars Once Have a Third, Larger Moon?
We are all familiar with our one Moon but other planets have different numbers of moons; Mercury has none, Jupiter…
The Early Universe Had a Lot of Black Holes
The Hubble Deep Field and its successor, the Hubble Ultra-Deep Field, showed us how vast our Universe is and how it teems with galaxies…
SETI Scientists Scan TRAPPIST-1 for Technosignatures
If there's an advanced civilization in the TRAPPIST-1 system living on multiple worlds, there's a way to eavesdrop on their…
A Star Was Kicked Out of a Globular Cluster by an Intermediate-Mass Black Hole
Astronomers have solid evidence for the existence of stellar-mass black holes and supermassive black holes. However, evidence for Intermediate Black…