Solar System

The Solar System has a second plane where objects orbit the Sun

Almost all the objects orbiting the sun live in a particular plane, called the ecliptic plane. But a recent analysis…

2 months ago

Planets Don’t Wait for Their Star to Form First

It looks like we may have to update our theories on how stars and planets form in new solar systems.…

2 months ago

A Rogue Earth-Mass Planet Has Been Discovered Freely Floating in the Milky Way Without a Star

If a solar system is a family, then some planets leave home early. Whether they want to or not. Once…

2 months ago

Check Out How Big the Planets and the Moon Will be in Our Sky Over the Next Two Years

Everything in space is moving. Galaxies collide and merge, massive clouds of gas migrate, and asteroids, comets, and rogue planets…

3 months ago

Sunrises Across the Solar System

Scientists have learned a lot about the atmospheres on various worlds in our Solar System simply from planetary sunrises or…

3 months ago

Jupiter Probably Has 600 Small, Irregular Moons

The better our technologies get, the better we get at finding objects in space. That's certainly true of Jupiter and…

3 months ago

This is What the Solar System Really Looks Like

At first glance, it looks like something from an alien autopsy. A strange organ cut from a xenomorph's thorax, under…

4 months ago

A Group of Meteorites All Came From a Destroyed Planetesimal With a Magnetic Core

Before our Solar System had planets, it had planetesimals. Scientists think that most of the meteorites that have struck Earth…

4 months ago

If Planet 9 is a Primordial Black Hole, We Might Be Able to See Flares When it Consumes Comets

A comet-eating black hole the size of a planet? It's possible. And if there's one out there in the distant…

5 months ago

Pluto and Other Kuiper Belt Objects Started Out With Water Oceans, and Have Been Slowly Freezing Solid for Billions of Years

It seems unlikely that an ocean could persist on a world that never gets closer than 30 astronomical units from…

5 months ago