The Universe, although violent, is filled with creation events following destructive ones. 1850 light-years away, both types are unfolding.
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You searched for: Pluto
We have long thought that Pluto was completely frozen solid, but the discovery of cryovolcanoes challenges that assumption.
Mercury, Venus, and Mars are all uni-plate planets, and may always have been. Here's what's known about why Earth, uniquely, has plate tectonics.
Pluto failed to meet the definition of a planet, but some astronomers think there might be a legitimate Planet 9 out there.
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 a distant galaxy, a cosmic dance between two supermassive black holes emits periodic flashes of light.
In 2006, Pluto was demoted in a very controversial decision. Unless you ignore nearly all of planetary science, it'll never be one again.
An army of replicators belonging to national laboratories, research universities, and amateur garages is rushing to replicate ambient superconductivity in LK-99.
Valles Marineris is the Solar System's grandest canyon, many times longer, wider, and deeper than the Grand Canyon. What scarred Mars so?
The nearby, bright star Fomalhaut had the first optically imaged planetary candidate. Using JWST's eyes, astronomers found so much more.
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.
Can two planets stably share the same orbit? Conventional wisdom says no, but a look at Saturn's moons might tell a different story.
The length of a day oscillates slightly every six years. This was a surprising discovery made last decade. We might now know why.
Get ready for the most peculiar road trip that will help you understand the vastness and emptiness of the solar system — and Sweden.
Coherentism accepts that circular reasoning is probably the best any of us can do.
What if intelligence can thrive without consciousness?
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. […]
From here on Earth, looking farther away in space means looking farther back in time. So what are distant Earth-watchers seeing right now?
The most unique interloper into our Solar System has a natural explanation that fits perfectly — no aliens required.
A new study shows that the Bernardinelli-Bernstein Comet is much larger than previously thought — potentially the largest ever spotted.
Our Universe requires dark matter in order to make sense of things, astrophysically. Could massive photons do the trick?
The stars, planets, and many moons are extremely round. Why don't they take other shapes?
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 […]
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.
Water is vital for life. Luckily for spacefaring humans, the solar system is full of it.
Each year in mid-August, Earth plows through the debris stream of an enormous comet, creating the Perseids. 2023's show will be magnificent!