How Earth's magnetic field saved the planet from being fried billions of years ago
Mar 18, 2016

If not for our planet’s fairly unique magnetic fields, the planet would’ve likely been deep-fried billions of years ago — meaning no life on earth for us.

Astronomers say rocky, Earth-sized world could be 'most important planet' ever found
Nov 12, 2015

Astronomers have discovered a very hot, very rocky planet about 39 light-years from Earth. Though it’s probably not somewhere we’d want to set up shop (440 degrees F is a bit on the warm side), scientists say it could still be one of the most important discoveries in modern space science.

Scientists just found a new layer inside the Earth that no one knew was there
Mar 25, 2015

We all learned the layers of the Earth in middle school, but it looks like the science textbooks might need a bit of a revision.

Image of the Day: See the enormity of the Solar System in this amazing rendering made to scale
Nov 6, 2014

Planet Earth obviously seems like a pretty big place to us, but how does it shape up when placed side by side with the rest of our Solar System, size-wise?

Asteroid strikes and boiling oceans: Here's what Earth looked like 4 billion years ago
Jul 31, 2014

We lowly humans get only a fleeting glance at the Earth’s evolution, but a new project aims to show exactly how our planet looked 4 billion years ago. Basically? Hell on Earth.

Astronomers just found the closest super-Earth yet that might be able to support life
Jun 26, 2014

The big bullseye for astronomers now is to find a planet in the habitable zone that could support life, and a team just spotted one a hop, skip and jump away form Earth.

Upcoming NASA mission could be 1st test of Earth's asteroid defense plan
May 16, 2014

If an asteroid is ever hurtling towards Earth, NASA scientists think they have a solid plan to prevent our untimely destruction — and they may get to test that theory soon.

Pack your bags? NASA just found the 1st Earth-size planet in a habitable zone
Apr 18, 2014

The agency keeps busy with quite a few projects, and NASA has had the Kepler Telescope trained at the stars in hopes of finding a second Earth — and they might’ve just found it.

Uh-oh! NASA study says humanity is likely headed for 'irreversible collapse'
Mar 17, 2014

While you typically think of NASA as the folks looking to the stars for our future, a new study from the agency finds we might not ever make it that long.

Earth is now on the edge of the habitable zone for life
Jan 29, 2013

Earth is pretty good at supporting life, but according to a new estimate of what constitues a planetary "habitable zone," it looks like our planet (and perhaps many others) is only barely in the right place.

Why does Earth's orbit tilt? Scientists finally think they know
Jan 14, 2013

It's an enduring puzzle that's had astronomers and astrophysicists scratching their heads for years: Why does the Earth tilt? Our planet orbits with at slight (7-degree) angle relative to the Sun, and we've never been able to figure out why, but now one scientist thinks he's got our planet's crooked spin solved.

Stunning video shows what astronauts see orbiting Earth at night
Dec 17, 2012

Over the past year, astronauts have been snapping shots of the Earth from the window of the International Space Station (ISS). The result? This stunning time-lapse video showing our beautiful planet as only a few get to see it.

Researchers say theories for how Earth was formed may be wrong
Dec 17, 2012

First we learn that the moon isn't from where we thought it was from, now the Earth's origins are being called into question. After years of following the same model for how our planet was formed, some researchers now think they have a new explanation for how Earth got here, and why it's drier than it should be.