Scientists find possible boiling oceans hidden beneath icy moons
Out in the cold, distant reaches of our solar system, many moons are wrapped in thick layers of ice.
At first glance, these worlds look...
Cosmic dust could help create life in space
Scientists have discovered that tiny particles of cosmic dust may play a much more important role in creating the building blocks of life than...
Why Earth has moving plates and Venus doesn’t
Scientists have taken an important step toward solving one of the biggest mysteries in planetary science: why Earth is covered in moving tectonic plates,...
Maybe Mars isn’t hiding liquid water under its south pole after all
For years, scientists have been intrigued by a mysterious signal coming from the icy south pole of Mars.
In 2018, a radar instrument called MARSIS,...
Earth and Theia were neighbors before they collided
According to the leading theory of how the Earth-Moon system formed (the Giant Impact Hypothesis), a Mars-sized object (named Theia) collided with a proto-Earth...
Scientists trace the moon’s birth to Earth’s nearby planetary twin
Around 4.5 billion years ago, a dramatic event changed Earth forever.
A massive, planet-sized body called Theia slammed into the young Earth in a violent...
Scientists recreate 100 billion stars in a virtual Milky Way for the first time
Scientists have achieved something that once seemed nearly impossible: they have created the first computer simulation of the Milky Way that represents more than...
Yes, the universe can expand faster than light
An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be straightforward.
Objects are still emitting light, and that...
Scientists discover what really powers Venus’s wild, planet-encircling winds
Imagine storms fiercer than the strongest hurricanes on Earth, blowing nonstop all the way around an entire planet.
This is exactly what happens on Venus,...
Astronomers spot first stars billions of years after they were supposed to die
Over the course of billions of years, the universe has steadily been evolving.
Thanks to the expansion of the universe, we are able to “see”...