Space & Future
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”...
Hunting for wandering black holes in dwarf galaxies
Tracking down black holes at the center of dwarf galaxies has proven difficult.
In part that is because they have a tendency to “wander” and...
How dark energy changed cosmology forever
Let’s rewind the clock back…oh, I don’t know, let’s say a hundred years. It was 1917, and Einstein had just developed his general theory...
How colorful microbes in clouds could help us find life on other planets
Clouds may spoil a picnic or block our view of the stars, but they could also help scientists discover life on distant planets.
A new...
Astronomers crack the case of mysterious radio relics in galaxy clusters
Galaxy clusters are the largest structures held together by gravity in the universe.
Each cluster contains hundreds or even thousands of galaxies, along with hot...
Deep Space
These bizarre features on Mars are caused by carbon dioxide geysers
Though it’s a cold, dead planet, Mars still has its own natural beauty about it. This image shows us something we’ll never see on...
Pentagon’s latest UFO report identifies hotspots for sightings
The Pentagon office in charge of fielding UFO reports says that it has resolved 118 cases over the past year, with most of those...
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,...
China’s surprising plan to hunt for water on the Moon
China has some cool plans for the moon! They have revealed how their moon probe, named Chang'e-7, is going to look for water-ice near...
Webb Telescope’s search for life on distant exoplanet faces challenges
Recent excitement about NASA's James Webb Space Telescope (JWST) potentially finding signs of life on a distant planet has been tempered by a new...