Astronomers have discovered an “iceball Earth” orbiting a star 13,000 light-years away. Multiple eyes on the sky have revealed some of this world’s secrets.
As NASA’s Cassini spacecraft sails through a clear gap between Saturn and its rings as part of its Grand Finale orbits, it found less than expected.
A new galaxy survey suggests that a supervoid isn’t responsible for the Cold Spot seen in the cosmic microwave background — the oddity may have a far more ancient origin.
The waxing gibbous Moon is now stepping eastward across Virgo, past Jupiter and Spica. Jupiter is highest for viewing by about 10 or 11 p.m. local time.
Pollen’s no friend of the allergy-prone, but there’s an upside to those itchy eyes — weird and colorful coronas around the Moon and Sun.
Astrophotography expert Jerry Lodriguss tells you how to remove light pollution from your astrophotos so you can have dark skies instead of red-brown ones.
Listen to May’s astronomy podcast to learn why the Big Dipper is the “Swiss Army Knife” of the late-spring northern sky.
Ten years ago the Spanish island of La Palma was declared a “Starlight Reserve” to protect its astronomical observatories from light pollution and guarantee a dark sky for everyone. The measures seem to have worked.