Dark Matter

Oddball Galaxy Puts Dark Matter Theory to the Test

A small, faint galaxy residing some 65 million light-years away has been threatening to upend scientists’ entire paradigm of dark matter—the supposedly ubiquitous particles thought to pervade the universe like ...
Jupiter moons

Scientists Announce 10 New Moons for Jupiter

Trivia teams across the country will have to update their astronomy notes. Today, a team of astronomers announced the discovery of 10 newly described moons orbiting Jupiter -- including one ...

Why Mars Appears to Be Moving Backward

Our solar system is in constant motion, with all eight planets — and dwarf planet Pluto — orbiting the sun. Most of those planets are visible from Earth, even to ...
Artist's impression of a water vapor plume on Europa.

New Research Raises Hopes for Finding Life on Mars, Pluto and Icy Moons

Since the 1970s, when the Voyager probes captured images of Europa’s icy surface, scientists have suspected that life could exist in interior oceans of moons in the outer Solar System ...
neutrino black hole at the center of a blazar galaxy

Why a 4-Billion-Year-Old Particle That Hit Antarctica Is Such a Big Deal

A single, high-energy neutrino struck Earth on Sept. 22, 2017. It came from a distant galaxy, wrapped around a supermassive black hole. And, beginning with a blockbuster paper published today (July ...

Eerie Space Sounds Are Coming From a Strange Bond Between Enceladus And Saturn

Data recorded during Cassini's final months is still giving us gold. New research from the probe's Grand Finale mission has uncovered a previously unknown interaction between Saturn and its moon ...
exoplanets kepler 186f

These 2 exoplanets might have seasons and stable climates

New findings suggest that some exoplanets will have stable axial tilts and climates, much as Earth does. This knowledge will help astronomers search for worlds similar to ours – the ...
This Galactic Collision Shaped the History of the Milky Way

This Galactic Collision Shaped the History of the Milky Way

As the Milky Way was growing, taking shape, and minding its own business around 10 billion years ago, it suffered a massive head-on collision with another, smaller galaxy. That cosmic ...
Asteroids are Plain Rocks or Five Destroyed Worlds

Asteroids are Plain Rocks or Five Destroyed Worlds?

A cloud of gas and dust was the matter from which all planets and the world originates…but what is exactly the origin of the asteroids? Origin of the world Outside ...