By studying the formation and evolution of galaxies in the early universe, researchers seek to test the predictions of our leading theory of cosmology.
The post Using Ancient Ultraviolet Light to Probe Theories of Cosmology appeared first on Sky & Telescope.
The first-quarter Moon passes the Pleiades, then Aldebaran. Cassiopeia stands on end. For the southern U.S., Canopus culminates far under Sirius.
The post This Week's Sky at a Glance, February 9 – 17 appeared first on Sky & Telescope.
A quasi-satellite of Venus has just received an unusual name.
The post How Venus Ended Up with a Mini-Moon Named Zoozve appeared first on Sky & Telescope.
A James Webb Space Telescope survey known as PHANGS has revealed exquisite, just-published details in 19 nearby galaxies.
The post Webb Telescope Unveils 19 Galaxies in a New Light appeared first on Sky & Telescope.
New evidence, based off of NASA's Cassini measurements of Mimas's orbit, suggests the icy "Death Star" moon might have a subsurface ocean.
The post Does Saturn's "Death Star" Moon Harbor an Ocean? appeared first on Sky & Telescope.
Juno has revealed Jupiter's volcanic moon Io as never before.
The post NASA's Juno Mission Makes Closest Flyby Past Io appeared first on Sky & Telescope.
Does this question leave you feeling worried that you are too late to make plans? It shouldn’t!
The post Where Will You Be on Eclipse Day: April 8, 2024? appeared first on Sky & Telescope.
When we observe the little wonders of the sky, we can form deep personal connections.
The post My Stellar Love Affair with the Pleiades appeared first on Sky & Telescope.
New Hubble Space Telescope observations reveal the warm sub-Neptune GJ 9827d might have a steamy atmosphere.
The post Hubble Reveals Possible Water-Vapor World appeared first on Sky & Telescope.
Under Orion is the Hare, which you may know, and under the Hare is the Dove, which you may not. February the best month for both.
The post This Week's Sky at a Glance, February 2 – 11 appeared first on Sky & Telescope.
NASA’s ground-breaking Ingenuity helicopter, part of the Perseverance mission, comes to a rest on the Red Planet.
The post NASA Ends Mars Ingenuity Helicopter Mission appeared first on Sky & Telescope.
The asteroid 2024 BX1 went from a moving dot of light to rocks on the ground in mere hours — and amateur astronomers were critical to both discovery and recovery.
The post Asteroid 2024 BX1: From a Dot of Light to Fireball to Rocks on the Ground appeared first on Sky & Telescope.
Astronomers have found two different star clusters with an enigmatic source inside. Are these objects neutron stars or black holes?
The post Mystery Objects Uncovered in Globular Clusters appeared first on Sky & Telescope.
In a first for Japan, the SLIM mission stuck a pinpoint landing on the Moon. How long the mission lasts depends on whether the solar cells begin charging.
The post Japan's "Sniper" Mission Pinpoints Landing on the Moon appeared first on Sky & Telescope.
Jupiter shines high, bright, and obvious after dusk. Mercury and Mars glimmer low, dim, and elusive for their close conjunction in the dawn.
The post This Week's Sky at a Glance, January 19 – 28 appeared first on Sky & Telescope.
The Event Horizon Telescope collaboration has released the image from its second major campaign, confirming the existence of a persistent black hole shadow and a potentially turbulent environment.
The post The Black Hole Shadow in M87: One Year Later appeared first on Sky & Telescope.
Although no total lunar eclipses occur this year, skywatchers can look forward to two “central” solar eclipses — including a much-awaited total eclipse that spans the U.S. from Texas to New England.
The post Solar and Lunar Eclipses in 2024 appeared first on Sky & Telescope.
An account of my journey to the heart of one of most violent cosmic explosions witnessed on Earth. Plus, there's a bright supernova now visible in a Virgo Cluster galaxy.
The post The Night I Met the Crab Pulsar appeared first on Sky & Telescope.
“Space gear” lets us celebrate the night sky while the sun shining — and connect with others who want to do the same.
The post Let Your Astronomy Nerd Flag Fly! appeared first on Sky & Telescope.
The “magic islands” that appear and disappear in Titan’s methane-ethane seas could be hydrocarbon icebergs, a new study finds.
The post Methane Icebergs Could Float in Titan’s Seas appeared first on Sky & Telescope.
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