Finding this missing piece of water’s path through the universe offers clues to how it came to be on Earth.
Only 17 years after its discovery have we learned we’re safe from asteroid Apophis. Ever since its 2004 discovery, asteroid 99942 Apophis has threatened planet Earth. Asteroid Apophis has been measured […]
The long-standing debate over whether dinosaurs were more like birds or lizards is drawing to a close.
"You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it."
"The surface is no longer a record of every impact the moon has ever had, because at some point, impacts were erasing previous impacts."
The most unique interloper into our Solar System has a natural explanation that fits perfectly — no aliens required.
Scorpions would probably survive.
A Harvard astronomer went to the bottom of the ocean, claiming he recovered alien technology. But what does the science actually indicate?
NASA will use energy from Earth's gravity to launch the Lucy spacecraft in October of this year.
Despite the vast number of planets in the Universe, Earth's specific evolutionary history guarantees that its life forms — including humans — are utterly unique.
Theoretically, we know what happened on the red planet. Here’s how we’ll find out whether we’re right. When it comes to the worlds beyond Earth in our Solar System, it’s only […]
A new study proposes that Hawking radiation could be used to find dark matter in places like primordial black holes.
Multiple lines of evidence — physical, chemical, and biological — must converge for scientists to conclude that alien life has been found.
If we manage to avoid a large catastrophe, we are living at the early beginnings of human history.
And if it does strike us, how much damage will it cause? Will near-Earth asteroid Apophis strike us in 2068? Generically, asteroids under ~1 km in size are irregularly shaped, will […]
Mammals have a history stretching back 325 million years. To study that ancient history is to know our own origins.
"Superhabitable" planets might be real, but Earth is probably as good as it gets.
Ingenuity is remarkable. But these 5 exploration ideas are revolutionary. Telescopes are our initial tools for revealing and studying foreign worlds. Hubble images of Mars, particularly around the regions with […]
The spikes in their mouths would have helped them catch squid or fish.
Over 50 years since humans last walked on the Moon, astronaut footprints and rover tracks are still visible. But they won't last forever.