Io is the innermost of the four Galilean moons orbiting Jupiter, distinguished as the most volcanically active world in the Solar System. Its extreme geological activity is a direct result of the immense tidal forces exerted by Jupiter, Europa, and Ganymede.
A massive upheaval in the Saturnian system could have also led to the moon Hyperion.
Every planet in the Solar System is mysterious in its own way. How did Venus evolve into such a hellscape? Did Mars ever support life? How did life on Earth get started?
Here's how you can contribute to the science of astronomy.
"Gangsters. War criminals. We'll take out every bad guy in your deck of cards."
Grab your telescope and join us on a sightseeing tour, before the moon returns to spoil the fun!
As Predator: Badlands decloaks on streaming and physical media, we've sat down for a quick spoiler-filled chat with its director.
It’s an age-old debate in space circles: Should humanity’s first city on another world be built on the moon, or on Mars?
NASA will try again to fuel up its Artemis 2 moon rocket on Feb. 19. If all goes well, the crewed mission could launch as soon as March 6.
China's Shenzhou 21 crew rang in the Year of the Horse with an impressive celebration aboard the nation's Tiangong Space Station that included filming a music video.
Results are coming out from the samples returned by China’s Chang’e-6 sample return mission to the far side of the Moon. They offer our first close-up look at the geology and history of the far side, and a recent paper published in Science Advances from researchers at the Chinese Academy of Sciences has very interesting insights about the impact history of the Moon itself, and even some for the solar system at large.
An annular eclipse swept over a remote corridor of Antarctica on Feb. 17.
Test your knowledge of Europe's boldest missions, brilliant spacecraft, and groundbreaking discoveries as you dive into a trivia challenge dedicated to the European Space Agency.
Earth’s river deltas, home to about 5% of the global population and some of the world’s major cities, are experiencing subsidence, which exacerbates the risks from sea-level rise. The Copernicus Sentinel-1 mission has captured a decade's worth of data showing land sinking faster than previously thought.
Using local resources will be key to any mission to either the Moon or Mars - in large part because of how expensive it is to bring those resources up from Earth to our newest outposts. But Mars in particular has one local resource that has long been thought of as a negative - perchlorates. These chemicals, which are toxic to almost all life, make up between 0.5-1% of Martian soil, and have long been thought to be a hindrance rather than a help to our colonization efforts for the new planet. But a new paper from researchers at the Indian Institute of Science and the University of Florida shows that, when making the bricks that will build the outpost, perchlorates actually help.
The Orion capsule's heat shield had issues during the uncrewed Artemis 1 moon mission in late 2022. Here are the steps NASA has taken to prevent them from recurring on Artemis 2.
Today (Feb. 17), the moon and sun will create a "ring of fire" during an annular solar eclipse. Here's what to expect.
NASA’s Space Launch System rocket is seen at Launch Complex 39B in the midst of pre-launch testing for the Artemis 2 mission. Image: Michael Cain/Spaceflight Now
NASA will try again to fully load its Space Launch System rocket with more than 700,000 gallons of liquid hydrogen and liquid oxygen this week at the conclusion of a full launch countdown rehearsal.
In 2023, NASA's OSIRIS-REx mission delivered samples of the 4.6-billion-year-old asteroid Bennu to Earth. Upon examining them, scientists discovered that the asteroid - which existed when the Solar System was in the earliest phase of its formation - contained amino acids, the fundamental building blocks of life as we know it. These acids are responsible for the production of proteins and peptides found in DNA. Their retrieval from space confirmed what scientists had theorized decades ago: that the ingredients for life came from space.
Astronomers may finally understand why planets orbiting two suns, the real-world equivalents of the "Star Wars" planet Tatooine, are so scarce in our galaxy — and it has to do with general relativity.
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