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Brightest Stars
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Astronomy Essentials
Tonight
Visible planets and night sky guide for February
Marcy Curran
February 2, 2026
Astronomy Essentials
Full moon names of the month and by the season
Editors of EarthSky
February 1, 2026
Astronomy Essentials
Human World
Happy Groundhog Day! Will Phil see his shadow?
Editors of EarthSky
February 1, 2026
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Sun
Sun news: Giant sunspot region EXPLODES with X8.1 flare!
C. Alex Young
Raúl Cortés
Armando Caussade
February 2, 2026
Astronomy Essentials
Tonight
Visible planets and night sky guide for February
Visible planets and night sky guide. Tonight, look for the moon near Regulus, the brightest star in Leo the Lion. They’ll be visible through dawn.
Marcy Curran
February 2, 2026
Earth
Jacana birds: Walking on water, breaking the rules
Jacana birds glide effortlessly across wetlands, defying both physics and nature's common gender roles. Discover this amazing creature here.
Cristina Ortiz
February 2, 2026
Human World
Oldest wooden tools yet unearthed found in southern Greece
The oldest wooden tools used by early humans have been uncovered in an ancient lakebed in Greece. The hand tools date to 430,000 years ago.
Dave Adalian
February 1, 2026
Astronomy Essentials
Full moon names of the month and by the season
Lists of common full moon names - both by month and by season - for North America. And a word about full moon names in the Southern Hemisphere.
Editors of EarthSky
February 1, 2026
Astronomy Essentials
Human World
Happy Groundhog Day! Will Phil see his shadow?
The predicted high for Punxsutawney, Pennsylvania, on February 2, Groundhog Day, is 24 degrees F (-4 C) and cloudy. Will Phil see his shadow?
Editors of EarthSky
February 1, 2026
Human World
The February birthstone is the purple amethyst
Are you a February baby? Here's some cool info about your February birthstone, the amethyst. Read the lore of this purple stone, a variety of quartz.
Editors of EarthSky
February 1, 2026
Tonight
Watch for the February full moon – or Snow Moon – on February 1
The full Snow Moon will shine brightly all night on February 1-2, 2026. This February full moon will glow near the star Regulus in Leo the Lion.
John Jardine Goss
Editors of EarthSky
January 31, 2026
Space
Is a surprisingly massive exomoon orbiting this big exoplanet?
Astronomers using the Very Large Telescope might have found a massive exomoon - 40% the mass of Jupiter - orbiting a giant exoplanet 133 light-years away.
Paul Scott Anderson
January 30, 2026
Space
New mission could create artificial solar eclipses in space
A team of researchers is working on a spacecraft mission that would use the moon to create artificial solar eclipses, aiding space weather monitoring.
EarthSky Voices
January 30, 2026
Constellations
Dorado and Mensa house the Large Magellanic Cloud
The constellations Dorado and Mensa are deep in southern skies. Between them, stretching across the border, lies the Large Magellanic Cloud.
Kelly Kizer Whitt
January 30, 2026
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Space
View All
Is a surprisingly massive exomoon orbiting this big exoplanet?
Paul Scott Anderson
January 30, 2026
New mission could create artificial solar eclipses in space
EarthSky Voices
January 30, 2026
Event Horizon Telescope probes source of 3,000-light-year-long black hole jet
EarthSky Voices
January 30, 2026
AI combed Hubble’s archive, saw hundreds of cosmic anomalies
EarthSky Voices
January 29, 2026
Astronomy Essentials
View All
Visible planets and night sky guide for February
Marcy Curran
February 2, 2026
Full moon names of the month and by the season
Editors of EarthSky
February 1, 2026
Happy Groundhog Day! Will Phil see his shadow?
Editors of EarthSky
February 1, 2026
The moon’s terminator line divides night and day
Kelly Kizer Whitt
January 25, 2026
Earth
View All
Jacana birds: Walking on water, breaking the rules
Cristina Ortiz
February 2, 2026
Heiligenschein is the halo around your head’s shadow
Kelly Kizer Whitt
January 28, 2026
Tiger shark mating site identified off Maui
Cristina Ortiz
January 26, 2026
Major winter storm set to impact large swath of the U.S.
Rachel Duensing
January 22, 2026
Human World
View All
Oldest wooden tools yet unearthed found in southern Greece
Dave Adalian
February 1, 2026
Happy Groundhog Day! Will Phil see his shadow?
Editors of EarthSky
February 1, 2026
The February birthstone is the purple amethyst
Editors of EarthSky
February 1, 2026
Oldest known rock art in the world found in Indonesian cave
Shireen Gonzaga
January 29, 2026