Photosynthesis changed Earth in powerful ways. When photosynthetic organisms appeared, it led to the Great Oxygenation…
Category: News
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The Polaris Dawn Crew is Back on Earth
On September 15th, 2024, the Polaris Dawn crew returned to Earth after spending five days in…
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…
Exoplanets Could be Hiding Their Atmospheres
Most of the exoplanets we’ve discovered orbit red dwarf stars. This isn’t because red dwarfs are…
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,…
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…
Did Mars Once Have a Third, Larger Moon?
We are all familiar with our one Moon but other planets have different numbers of moons;…
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…
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…
SETI Scientists Scan TRAPPIST-1 for Technosignatures
If you are going to look for intelligent life beyond Earth, there are few better candidates…