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Editors of EarthSky
June birthstone: Pearl, moonstone or alexandrite
For June babies, pick any of these as your June birthstone: a gleaming pearl, a glowing moonstone, or a colorful and exotic alexandrite. All are lovely choices.
June 1, 2025
Soviet spacecraft Kosmos 482 just crashed to Earth
That old, failed Soviet spacecraft - Kosmos 482 - has apparently come back to Earth, likely in the Indian Ocean, according to Roscosmos.
May 10, 2025
Watch a sungrazing comet’s final death leap
The sungrazing comet appears as a relatively bright and slow-moving dot, heading toward the sun, then suddenly fading away.
April 15, 2025
See the Atlantic hurricanes name list for 2025
Get the list of names for the 2025 season for Atlantic tropical cyclones and hurricanes. Read more about how the naming system came to be.
April 4, 2025
Uranus discovered by accident on this date in 1781
William Herschel spotted Uranus in 1781 during a routine survey of the stars. It was the 1st new planet found since ancient times.
March 13, 2025
Sirius is a future southern Pole Star
Wait, what? It's true. The sky's brightest star, Sirius aka the Dog Star, will come to within 1.6 degrees of the south celestial pole in the year 66270.
January 30, 2025
Mars closest to Earth on January 12, 2025
The Mars opposition - when Earth flies between the sun and Mars - comes on January 15-16, 2025. But January 12, 2025, finds Mars closest to Earth.
January 12, 2025
Too cold to snow? Do cold temperatures prevent snow?
Can it ever be too cold to snow? The fact is, no matter how cold a snow-producing cloud is, if it has a source of water, it can build big snowflakes.
January 12, 2025
Personal solstices from the EarthSky community
Some people like to mark the solstice with a special sunset view, or marking of shadows, or party! Personal solstices from the EarthSky community, here.
December 20, 2024
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
