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Posts by
Editors of EarthSky
Comets are icy balls of gas, dust and rock
Comets are diffuse balls of ice and dust orbiting the sun. They're sometimes visible in our skies. A comet's tail can stretch millions of miles across space.
November 28, 2024
See Orion’s Belt as a celestial bridge between hemispheres
Many know Orion's Belt, a short, straight row of 3 stars. Orion's Belt is considered a celestial bridge between the sky's Northern and Southern Hemispheres.
November 13, 2024
Annular solar eclipse today! See a ring of fire
Today, an annular solar eclipse will cross over parts of South America, the Pacific Ocean, the Atlantic Ocean, and Antarctica. Watch a livestream here.
October 2, 2024
LIVE MONDAY: SpaceX and Space Race 2.0 with Eric Berger
Join EarthSky's Dave Adalian LIVE at 12:15 p.m. central (17:15 UTC) on September 30. He'll be chatting with Eric Berger, senior space editor at Ars Technica.
September 30, 2024
Pioneer 11 swept past Saturn 45 years ago today
Pioneer 11 was the 1st spacecraft to encounter Saturn. A true pioneer, it paved the way for the 2 Voyagers in 1980 and 1981 plus Cassini from 2004 to 2017.
September 1, 2024
See it! This week’s auroras and Perseids!
The beloved Perseid meteor shower peaked just as auroras were gracing our skies. Wow! See images from the EarthSky community here.
August 13, 2024
Auroras on May 10-11 wowed millions! Pics here
Auroras last night from "extreme" geomagnetic storming - which came after a week of very high activity on the sun - wowed millions around the globe.
May 16, 2024
How Pluto got its heart
The New Horizons spacecraft saw a heart-shaped feature on Pluto during its 2015 flyby. New computer simulations suggest an impact created Pluto's heart.
April 16, 2024
Use the Big Dipper to find the Little Dipper
Polaris marks the end of the handle of the Little Dipper. The 2 outer stars in the bowl of the Big Dipper point to Polaris and help you find the Little Dipper.
April 14, 2024
Monday’s total solar eclipse from space
Earth-observing satellites captured imagery of the Moon’s shadow as it raced eastward over North America on the April 8, 2024 total solar eclipse.
April 12, 2024
