We have long thought that Pluto was completely frozen solid, but the discovery of cryovolcanoes challenges that assumption.
The Universe, although violent, is filled with creation events following destructive ones. 1850 light-years away, both types are unfolding.
Do you think you know the Solar System? Here's a fact about each planet that might surprise you when you see it!
In all of human history, only 5 spacecraft have had the right trajectory to exit the Solar System. Will they ever catch Voyager 1?
In 2006, Pluto was demoted in a very controversial decision. Unless you ignore nearly all of planetary science, it'll never be one again.
The truth is out there.
In a distant galaxy, a cosmic dance between two supermassive black holes emits periodic flashes of light.
An army of replicators belonging to national laboratories, research universities, and amateur garages is rushing to replicate ambient superconductivity in LK-99.
Compared to Earth, Mars is small, cold, dry, and lifeless. But 3.4 billion years ago, a killer asteroid caused a Martian megatsunami.
All across the Universe, planets come in a wide variety of sizes, masses, compositions, and temperatures. And most have rain and snow.
The nearby, bright star Fomalhaut had the first optically imaged planetary candidate. Using JWST's eyes, astronomers found so much more.
Debris from Pluto-sized collisions, not aliens, are streaming through the galaxy. In 2017, scientists discovered an object passing through our Solar System that was unlike anything else we had ever seen. […]
Coherentism accepts that circular reasoning is probably the best any of us can do.
The length of a day oscillates slightly every six years. This was a surprising discovery made last decade. We might now know why.
What if intelligence can thrive without consciousness?
In 2006, the IAU demoted Pluto. Here’s what we know today. In 2006, the last planet in our Solar System suffered an unforgettable insult, as Pluto — known for generations as our ninth […]
The most unique interloper into our Solar System has a natural explanation that fits perfectly — no aliens required.
From here on Earth, looking farther away in space means looking farther back in time. So what are distant Earth-watchers seeing right now?
Get ready for the most peculiar road trip that will help you understand the vastness and emptiness of the solar system — and Sweden.
Scientists find an exoplanet whose strange behavior may lead to the Solar's System hidden ninth planet.
Astronomers possibly solve the mystery of how the enormous Oort cloud, with over 100 billion comet-like objects, was formed.
The largest moon around our last planet didn’t originate with Neptune. When it comes to the moons of our Solar System, there’s only one planet that doesn’t fit in with our […]
Out of the four rocky planets in our Solar System, only Earth presently has plate tectonics. But billions of years ago, Venus had them, too.
Although we still don't know the question, we know that the answer to life, the Universe, and everything is 42. Here are 5 possibilities.