Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Posts by
Editors of EarthSky
Was ‘Oumuamua a comet? Avi Loeb responds to new research
A March 22 study suggests that 'Oumuamua, which passed us in 2017, was a comet from another solar system. Harvard astronomer Avi Loeb strongly disagrees.
March 24, 2023
Mercury – near Jupiter – after sunset in late March
Mercury is visible in the evening sky. Look in the sunset direction as the sky is darkening. The planet reaches its greatest elongation on April 11, 2023.
March 24, 2023
Does a green sky predict a tornado is coming?
If you see a foreboding, green sky, it's best to take cover. A tornado might not be approaching, but green skies can be a sign of hail and other bad weather.
March 23, 2023
Is a solar flare the same thing as a CME?
Solar Cycle 25 is fairly active now, and that means more solar activity. So, what's the difference between a solar flare and a coronal mass ejection (CME)?
March 22, 2023
Active volcanoes on Venus found in Magellan data
Scientists have evidence for an active volcanic vent on a known Venus mountain. It's the first direct evidence of active volcanoes on Venus!
March 15, 2023
What are the Ides of March, and why should you beware?
What are the Ides of March? That's March 15. In Shakespeare's play, Julius Caesar was warned to "Beware the Ides of March" before his assassination.
March 15, 2023
Another atmospheric river is slamming California
Another atmospheric river will slam California today, March 14, 2023, bringing dangerous rainfall amounts and additional flooding.
March 14, 2023
Zodiacal light: All you need to know
The zodiacal light is an eerie light extending up from the horizon. And the months around the March equinox is a good time to see it. How to see them, here.
March 13, 2023
Atmospheric rivers now have intensity rankings
Scientists are pushing an intensity scale for atmospheric rivers, much like the hurricane intensity scale. They think it'll help keep people safer.
March 12, 2023
March full moon is March 6-7 in 2023
The March full moon on March 6, 2023, is near the bright star Regulus in the constellation Leo. Watch for it from dusk to dawn!
March 6, 2023
