Waves of Methane Are Crashing on the Coasts of Saturn's Titan

Instead of water, the fluid that runs across Titan is an unholy mixture of methane, ethane, and other hydrocarbons. A new study suggests that waves of the greenhouse gases could be crashing on the moon’s coastlines, shaping its wet landscape.

Perseverance Finds "Popcorn" on Planet Mars

After months of driving, Perseverance has finally arrived at "Bright Angel", discovering oddly textured rock unlike any the rover has seen before.

Astronomers see a massive black hole awaken in real time

In late 2019 the previously unremarkable galaxy SDSS1335+0728 suddenly started shining brighter than ever before. To understand why, astronomers have used data from several space and ground-based observatories.

High-precision measurements challenge our understanding of Cepheids

Scientists have clocked the speed of Cepheid stars -- 'standard candles' that help us measure the size of the universe -- with unprecedented precision, offering exciting new insights about them.

Double-record-breaking merging quasars found at "Cosmic Dawn"

Astronomers discovered the first pair of merging quasars from the Cosmic Dawn, 900 million years after the Big Bang.

The Biggest Storm in The Solar System Might Not Be as Old as We Thought

Jupiter's Great Red Spot (GRS) is one of the Solar System's defining features. It's a massive storm that astronomers have observed since the 1600s. However, its date of formation and longevity are up for debate.

Space Rock That Fell to Earth Reveals Ancient Traces of Early Solar System

A lot as changed in the 4.5 billion or so years since the Solar System first came together from a disk-shaped cloud of swirling dust and gas.

Voyager 1 Returning Science Data From All Four Instruments

NASA’s Voyager 1 spacecraft is conducting normal science operations for the first time following a technical issue that arose in November 2023.

Earth's inner core is slowing down, making our days a bit longer

Deep beneath our feet, in the heart of our planet, something unexpected is happening. Scientists have discovered that Earth’s inner core, a solid iron-nickel sphere roughly the size of the moon, is slowing down.

Gravity may exist without mass, so dark matter may not not exist after all

Scientists have grappled with the fundamental forces that govern our universe, chief among them being gravity, and more recently, dark matter.

NASA Watches Mars Light Up During Epic Solar Storm

In addition to producing auroras, a recent extreme storm provided more detail on how much radiation future astronauts could encounter on the Red Planet.

Ephemeral morning frost discovered atop Mars' tallest volcanoes

Morning images show frost briefly coating at least four colossal volcanoes: Olympus Mons, Arsia Mons, Ascraeus Mons, and Ceraunius Tholus.

Solar System Passed Through Cold Interstellar Cloud About 2 Million Years Ago

Cold, dense clouds in the interstellar medium of our Milky Way Galaxy are around four-five orders of magnitude denser than their diffuse counterparts.

The Milky Way May Have Collided With Something Huge Within Earth's Lifetime

The Milky Way is only as massive as it is because of collisions and mergers with other galaxies.

Astronomers Discover Slowest-Spinning Radio-Emitting Neutron Star

A neutron star labeled ASKAP J1935+2148 defies rules for neutron stars, emitting radio signals on a comparatively leisurely interval of 53.8 minutes.