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Posts by
Editors of EarthSky
When will the Blaze Star erupt? Will neutrinos give us a warning?
Astronomers are still waiting for the Blaze Star to erupt. New research suggests neutrinos could provide an early warning of its next outburst.
November 3, 2026
November birthstone: Choose from either topaz or citrine
The November birthstone, topaz, comes in lots of colors. It's a much-loved gemstone in jewelry, with myths that date to ancient times. Or choose citrine.
November 1, 2026
Algol the Demon Star, named for its strange behavior
What's the scariest star in all the heavens? It's Algol the Demon Star, and you can see it on autumn evenings. Here’s the secret of Algol's creepiness!
October 29, 2026
Astronomy Essentials
Meteor shower guide 2026: Up next … the Taurids
Up next are the North and South Taurid meteor showers. Check EarthSky's meteor shower guide here.
October 22, 2026
Comet Halley is parent of 2 meteor showers
The famous comet Halley spawns both the October Orionid meteor shower and the May Eta Aquariid meteor shower. It'll return to the inner solar system in 2061.
October 18, 2026
Inferior conjunction — Venus! October 23-24, 2026
Venus reaches inferior conjunction — passing between Earth and the sun — at 4 UTC on October 24, 2026. Afterwards, it emerges into the eastern sky before dawn.
October 17, 2026
Astronomy Essentials
We fly between the sun and Saturn on October 4
Don't miss Saturn at opposition on and around the night of October 4, 2026. That's when our planet Earth passes between the sun and Saturn.
October 4, 2026
October birthstone: Colorful opal and tourmaline
Take your pick: the October birthstone is either the striking iridescent opal or the many-colored tourmaline. Learn the lore of these pretty gemstones here.
October 3, 2026
Mercury greatest distance after sunset February 2, 2027
Mercury will reach its greatest elongation in the evening sky on February 2, 2027. This will be best viewed from the Northern Hemisphere.
September 30, 2026
Watch for the daytime moon after sunrise this week
Watch for the beautiful daytime moon this week, a pale orb floating against a blue sky in the morning hours. Look west! You'll see it!
September 29, 2026
