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Space Exploration
Over 50 years since humans last walked on the Moon, astronaut footprints and rover tracks are still visible. But they won't last forever.
We may be the last generation born not knowing if we are alone in the Universe.
The concept of the warp drive is currently at odds with everything we know to be true about physics.
The giant impact theory suggests our Moon was formed from proto-Earth getting a Mars-sized strike. An exoplanet system shows it's plausible.
A Harvard astronomer went to the bottom of the ocean, claiming he recovered alien technology. But what does the science actually indicate?
Get ready for the most peculiar road trip that will help you understand the vastness and emptiness of the solar system — and Sweden.
Some 55 million light-years away lies the giant galaxy Messier 87. Its supermassive black hole, inside and out, looks better than ever.
For thousands of years, we puzzled at how far away the Moon was. Today we know its distance, at any time, to within millimeters.
When you turn a map of East Asia upside down, Beijing’s geographic constraints and regional ambitions become much clearer.
While Saturn and its moons all appear faint and cloudy to JWST, Saturn's rings are the star of the show. Here's the big scientific reason.
There's an entire Universe out there. So, with all that space, all those planets, and all those chances at life, why do we all live here?
In one experiment, the Viking landers added water to Martian soil samples. That might have been a very bad idea.
Particles behave differently when freed from the force of gravity. A new space factory aims to use this to synthesize pharmaceuticals.
From a photon's viewpoint, the Universe is timeless and dimensionless.
The truth is out there, but it's probably not in the latest whistleblower's report.
In a far-reaching discovery with astrophysicist Karolina Garcia, we discuss what's in the Universe and how it grew up.
The brightest gamma-ray burst ever observed, GRB 221009A behaved in unexpected ways that might help us understand how they occur.
Exoplanet LP 791-18d is likely to have an atmosphere and liquid water.
Hubble showed us what our modern day Universe looks like. JWST's big goal was to teach us how the Universe grew up. Here's where we are now.
With no other galaxies in its vicinity for ~100 million light-years in all directions, it's as isolated and lonely as a galaxy can be.
The outer planets' clouds hide the weirdness within.
Memorial day is a time to remember veterans killed in the line of service. These spaceflight heroes deserve to be remembered, too.
"Superhabitable" planets might be real, but Earth is probably as good as it gets.
Science fiction movies capture a classic human flaw: getting the future mostly wrong.
Does humanity have a moral imperative to seed life on lifeless worlds? And should we avoid colonizing a planet if life already exists there?
A next-generation instrument on a delayed rover may be the key to answering the question of life on Mars.
There may be a symmetrical interdependence between order and chaos.
When the Universe was first born, the ingredients necessary for life were nowhere to be found. Only our "lucky stars" enabled our existence.
Back in 1990, we hadn't discovered a single planet outside of our Solar System. Here are 10 facts that would've surprised every astronomer.
The nearby, bright star Fomalhaut had the first optically imaged planetary candidate. Using JWST's eyes, astronomers found so much more.