Here's a quick look at results announced at the 2017 American Geophysical Union meeting in New Orleans: exploding meteoroids, Saturn's ring-atmosphere connection, and more bright spots on Ceres.
New analysis from the New Horizons team suggest that the spacecraft's next target in the Kuiper Belt might have a third companion.
NASA’s Juno spacecraft peeked under the clouds of the most iconic weather feature in the solar system, Jupiter’s Great Red Spot, revealing a complex structure deep below the surface.
A new analysis reveals that the gigantic impact that led to the Moon's formation might have also switched on Earth's magnetic field.
NASA is developing a key instrument for a mission to the Martian moons, Phobos and Deimos.
Rapid-response observations by major observatories shows that the first-known interstellar visitor is 10 times longer than it is wide.
The arrival of an object from beyond the solar system caught astronomers by surprise — but that doesn't mean that they were unprepared to study it.
Observations from NASA's MAVEN spacecraft reveal that the solar wind causes unexpected interactions with the Red Planet's weak magnetism.
An upcoming study will take the old calibration standard of the Moon's brightness to a new level of precision.
Telescopes only picked it up a week ago, but it's likely been traveling through interstellar space for millions of years.
A professional observatory in Greece has begun recording flashes created when bits of interplanetary debris strike the Moon.
You'd think scientists would have Saturn all figured out after watching it up close for 13 years. They don't.
When the distant dwarf planet Haumea briefly slipped in front of a star last January, astronomers found more than they expected.
Roughly 3.5 billion years ago huge volcanoes released enough gas to cover the Moon with a thin atmosphere that was visible from Earth.
The close pass of near-Earth asteroid 2012 TC4 this week will give NASA a chance to test planetary-defense coordination.
Here’s an opportunity for amateurs to help improve our understanding of Neptune’s moon Triton.
The 2017 solar eclipse could easily be the most watched event in US history. Can we learn something from it?
A new analysis maps out water across the lunar surface, revealing how its abundance changes with latitude.
After 13 years of orbiting the Saturn system, and 4.9 billion miles logged, the Cassini mission has ended, vaporized on re-entry into the ringed planet.
As Cassini dives into Saturn's atmosphere this Friday, ending 13 years of exploration, expect to probe the ringed planet's mysteries as never before.
Two years after New Horizons captured the first high-resolution image of Pluto, the IAU releases official names for some of its features.
A new analysis shows that nearly 100 stars buzz our solar system every million years — an effect that can hurl regular cosmic hailstorms of comets toward Earth.
Scientists and astronomy enthusiasts are coming together to celebrate two spacecraft, billions of miles beyond Earth, as they head for the stars.
A large Earth-approaching asteroid, now sailing near Earth, has a lumpy shape and is accompanied by a pair of tiny moonlets.
Florence, one of the largest Earth-approaching asteroids, gets close enough to see in a small telescope this week and next. Here's how to find it.