menu
close
subscribe donate

EarthSky

EarthSky

The EarthSky team has a blast bringing you daily updates on your cosmos and world. We love your photos and welcome your news tips. Earth, Space, Human World, Tonight.

Nishinoshima volcano belches ash and lava

Posted by in Earth | Today's Image | 3 days ago
Posted by

A young volcanic island in the western Pacific Ocean has been going through a vigorous growth spurt since mid-June 2020.

Curiosity Mars rover’s summer road trip has begun

Posted by in Space | 5 days ago
Posted by

After more than a year in a clay-rich region, Curiosity is making a mile-long journey around some deep sand so that it can explore higher up Mount Sharp.

10 years of the sun in 1 hour

Posted by in Space | 1 week ago
Posted by

A new timelapse from NASA’s SDO Observatory condenses an entire solar cycle into 1 hour.

Why fireflies light up

Posted by in Earth | 1 week ago
Posted by

A firefly’s familiar glow is caused by a chemical reaction. Explanation here, plus many wonderful firefly photos.
Asteroid Day 2020 poster.

Asteroid Day, June 30, live from Luxembourg

Posted by in Human World | Space | 2 weeks ago
Posted by

The 6th annual Asteroid Day will be held as a digital event on June 30, 2020. It’ll feature presentations with experts, panel discussions, and question-and-answer periods. Here’s how to participate.
Matchstick-like trees laying on the ground, in black and white.

When the sky exploded: Remembering Tunguska

Posted by and in Earth | Space | 2 weeks ago
Posted by and

On June 30, 1908, the largest asteroid impact in recorded history occurred in remote Siberia, Russia. We now celebrate Asteroid Day each year on the anniversary the Tunguska event, as it is now known.

How much oxygen comes from the ocean?

Posted by in Earth | 3 weeks ago
Posted by

At least half of Earth’s oxygen comes from the ocean.
Rippled, shining clouds above a waterway, in Arctic twilight.

The secrets of night-shining clouds

Posted by in Earth | 3 weeks ago
Posted by

Noctilucent cloud season has returned to Earth’s high latitudes. These “night-shining” clouds are beautiful … photos here.
A star field, with one star shifting position.

Wowzer! Pluto spacecraft sees parallax for Proxima

Posted by in Space | 4 weeks ago
Posted by

New images from the fringes of our solar system. The fast-moving New Horizons spacecraft sees a parallax shift – a different apparent position against the background stars – for Proxima Centauri.
Pacific Ocean with some clouds, with the Earth's terminator visible in half the image.

Happy World Oceans Day 2020

Posted by in Earth | Human World | 1 month ago
Posted by

Why a World Oceans Day? Consider that Remdesivir, an antiviral medication now undergoing clinical trials as a possible Covid-19 treatment, contains compounds found in sea sponges. Innovation for a Sustainable Ocean is the theme for World Oceans Day 2020.