Space News & Blog Articles

Astronomers have discovered a large but very dim ghost-like galaxy. Its existence challenges our notions of dark matter.

The planned LISA gravitational-wave detector might discover a shower of hundreds of small black holes falling in galactic centers.

The American Astronomical Society is celebrating its 125th anniversary. Visit the AAS site to learn more about this exciting milestone.

Sky & Telescope’s recent tour to Iceland explored all the island’s sights — and kept S&T’s record at a solid nine for nine for seeing auroras!

The Flamingo simulations are not only the largest but also the most all-encompassing simulations of the universe, from 13.75 billion years ago to today.

The James Webb Space Telescope and Juno mission turned their eyes to Jupiter and its volcanic moon Io, revealing fine details.

A highly energetic fast radio burst, which broke the distance record, provides a crucial test for theories of these events' origins.

Going by the paperwork, 1 million satellites are headed for the skies. The question is, how many of these are real? New policy may help stem the tide.

The waxing Moon in the evening sky visits Saturn, then Jupiter. And as Halloween approaches, Arcturus becomes the Ghost of Summer Suns.

Bundle up and enjoy the Orionid meteor shower under moonless skies this week. Don't miss the warm-up act, either, when two of Jupiter's moons pair up in a captivating double-shadow transit.

Ancient pine trees hold the record of an atmospheric event 14,373 years ago. The only known explanation is a massive solar storm.

The weekend's solar eclipse dazzled observers throughout the U.S. and Mexico. Sky & Telescope editors and contributing editors report.

The Psyche mission launched today, on its way to rendezvous with the asteroid of the same name in 2029.

The week's big event is the Moon stepping on the Sun on Saturday the 14th. But the Moon's not done. Several days later it steps squarely on the handle of the Sagittarius Teapot, then on Herman's Cross. Show-off.

A star's sudden brightening and, two years later, its sudden dimming point to a cataclysmic collision between two large worlds.

If you can't see the annular solar eclipse in person, we've got some online viewing opportunities for you.

An explosive flash of blue light briefly appeared in intergalactic space, thousands of light-years from the nearest galaxy.

The Osiris-REX sample collection team reveals the first look at material collected from the asteroid Bennu.

Making room for astronomy in my life has felt like coming home — as if the universe has left a literal light on for me.

Satellite imagery will prove invaluable in making decisions on the day of the annular solar eclipse.

Comet 12P/Pons-Brooks has awakened again from its recent slumbers with a fresh outburst. It's now bright enough to see in a modest telescope.