A daily update by email. Science news, great photos, sky alerts.
Visible planets and night sky guide for June 2024. Tomorrow morning, the moon will hang close to Saturn. The bright star Fomalhaut will shine nearby.
There's a lineup of 6 planets in the morning sky in early June. Will you see all of them? Find charts and observing tips here.
Researchers at Yale University said habitable planets in binary star systems - so-called Tatooine exoplanets - may be more common than previously thought.
How big are asteroids? This video shows the sizes of 22 asteroids - ranging from tiny to vast - in comparison to New York City.
In a new study, astronomers say that at least some of the 7 Earth-sized TRAPPIST-1 exoplanets could be habitable now, even if they didn't start out that way.
A new study predicts that NASA's upcoming Roman space telescope will find 400 Earth-mass rogue planets. These worlds drift freely in space, unbound to any star.
On July 18, 19 and 20, 2023, the moon visits 3 rocky planets in the west. Mercury, Venus and Mars will all pair up with the moon on back-to-back nights.
Seen from space, both stars and planets shine steadily, but seen from Earth, stars twinkle while planets (usually) do not. Here’s why.
Wednesday's house-sized asteroid was followed by a bus-sized asteroid that passed Earth Thursday. Both were discovered just within the last week.
Researchers are now saying that supernova X-rays can damage planets' atmospheres at up to 160 light-years away, dramatically altering life's prospects.
Are there any habitable planets orbiting the 2 sun-like stars of Alpha Centauri? We don't know yet, but the TOLIMAN mission will search for them.
This week you can see 5 planets arcing across the evening sky. They are Venus and Uranus, Jupiter and Mercury, and Mars. See charts here.
The March 1-2 conjunction of the bright planets Venus and Jupiter has ended. Great photos from EarthSky's community here.
Astronomers have discovered 59 new exoplanets orbiting red dwarf stars. Twelve are potentially habitable. They all lie within 65 light-years of our sun.
You can watch 4 exoplanets orbit their home star in this new video from Jason Wang of Northwestern University. See the video here.
Exoplanets are worlds orbiting distant stars. Learn the history of our knowledge of exoplanets, the various types, how astronomers find them, and more.
Astronomers hope to use the James Webb Space Telescope to detect biosignatures - signs of life - in the atmospheres of distant planets.
A new study examines whether binary-star planets - planets orbiting 2 suns - can harbor life.
NASA/JPL announced on March 21, 2022, that the count of confirmed planets beyond our solar stands just over 5000 exoplanets, a 30-year journey of discovery.
Early risers can spot pairs of planets and the moon on the mornings of February 27 and 28, 2022. Look in the sunrise direction, while it's still dark.