NOAA releases 2018 Arctic Report Card

This year’s report shows that the Arctic region experienced the 2nd-warmest air temperatures ever recorded, the 2nd-lowest overall sea-ice coverage, and lowest recorded winter ice in the Bering Sea.

Huge previously-undetected coral reef off US East Coast

Earlier this year, scientists were surprised to discover a huge forest of coldwater corals off the coast of South Carolina. A scientist aboard the expedition discusses the find.

Voyager 2 enters interstellar space

NASA announced Dec. 10 that for the 2nd time in history, a human-made object has reached the space between the stars.

Another El Niño on the horizon?

The World Meteorological Organization has said there’s a “75–80% chance” of a fully-fledged El Niño event by February, 2019. Click in for a good video from ESA describing El Niños and their global effects.

Listen to the Martian wind

NASA’s InSight lander has captured the 1st-ever sounds of Martian winds.

Watch geckos race on water!

Geckos are renowned for their acrobatic feats on land and in the air. Turns out they can also run on water.

Over 100 new exoplanets from Kepler and Gaia

At least 18 of the new planets are less than 2 times larger than the Earth, and are likely to have rocky compositions with atmospheres comparable to Earth’s.

A measurement of all the starlight ever produced

How much starlight has our universe produced? According to a new study, stars have radiated 4×1084 photons since the start of the universe 13.7 billion years ago. That’s the number 4 with 84 zeros behind it.

Astronomers’ 1st close-up look near a supermassive black hole

For the 1st time, researchers have been able to observe the motion of gas clouds around a central supermassive black hole. This particular black hole powers the famous quasar 3C 273.

Take 2 trips around Earth, from space

It’s been 20 years since the launch of the International Space Station. To celebrate, enjoy this video timelapse of 2 trips around Earth, via ISS astronaut Alexander Gerst. Longest-yet timelapse from space!

2019 EarthSky Fundraiser

Hello, friends of the Earth and sky! We need you and your support to keep going.

Would you consider


If you've already donated, we apologize for the popup and greatly appreciate your support.