1–20 of 6,811 results
Jupiter occultation on May 17, 2023

Celestial News & Events

Rare Sight Ahead! Watch the Moon Occult Jupiter Early October 6th

Jupiter disappears then returns in a blaze of glory at the Moon's dark rim before dawn.

Saturn on Sept. 26, 2026

Celestial News & Events

Saturn Flaunts its Rings at Opposition the Night of October 3–4

Leaves fall. Frost sparkles. And once again we fall under the magical spell of Saturn, the Lord of the Rings.

Moon passing through Gemini and past Mars in early dawn, Oct. 3-5, 2026

Celestial News & Events

This Week's Sky at a Glance, October 2 – 11

The Moon occults Jupiter for much of North America very late Monday night October 5-6, after missing Castor, Pollux, and Mars on previous nights.

Saturn and October's full Moon

Night Sky Sights

October Podcast: Saturn is a “Star”

This episode takes you on a tour of the stars and planets that you’ll see overhead during October. This month the spotlight is on Saturn, which can be seen all night, and a fantastic occultation of Jupiter by the Moon. So grab your curiosity, and come along on this month’s Sky Tour.

Gibbous Venus from Akatsuki

Solar System

Did Venus Swallow Its Moon?

New simulations show that our now-moonless neighbor might once have had a satellite, but the moon crashed back into it.

TMT spherical building has dome open, telescope inside visible, and lasers coming out of the dome and into the sky

Professional Telescopes

Rejected: Spain’s Proposal to Build the Thirty Meter Telescope on La Palma

The island was the backup site for the giant telescope, whose future remains in limbo.

A simulation of JUICE's second Earth flyby. ESA

Astronomy in Space with David Dickinson

Jupiter Icy Moons Explorer Makes Penultimate Earth Flyby

On September 28th, Europe's JUICE mission makes another pass by home, en route to the icy moons of Jupiter.

Bright Moon rising at dusk with Saturn, Sept. 26-27, 2026

Celestial News & Events

This Week's Sky at a Glance, September 25 – October 2

Saturn comes to opposition. So does the Moon. Once the Moon is gone from the evening sky, try with your telescope for the autumn globular clusters Sagittifolia, Queen Anne's Lace, Watercress by the Stream, and Seaflower of the Deep.

PRIMA

Space Missions

NASA Selects Far-Infrared Mission PRIMA to Survey the Cool Universe

NASA has selected a new space probe for development: The PRIMA telescope will explore the far-infrared universe.

Artist's concept of AU Microscopii b

Exoplanets

How Can a Puny Star Make a Giant Planet?

Astronomers have directly imaged a giant planet around a low-mass star — something they didn’t think was possible.

young, forming exoplanet

Exoplanets

Astronomers Have Spotted the Youngest Planet Yet

A baby planet is carving out a gap in the natal disk of its star as it assembles material, providing a rare window into the earliest stages of planet formation.

IC 348, a young star cluster

Exoplanets

Stunning Panorama Reveals Tiniest Brown Dwarfs Yet

The stellar nursery IC 348 is forming lots of stars — and some of the puniest brown dwarfs (aka, “failed stars”) we’ve ever seen.

People, Places, and Events

Royal Observatory Greenwich and ZWO Present the Astronomy Photographer of the Year

The winners of the 18th annual Astronomy Photographer of the Year contest were announced on September 17th. Take a look at the winning photos.

Moon a day past first quarter. LRO simulation with labels, evening of Sept. 23, 2026.

Celestial News & Events

This Week's Sky at a Glance, September 18 – 27

Every evening the waxing gibbous Moon reveals a wealth of new telescopic detail. Can you still catch Venus low in twilight as it nears conjunction? On the opposite side of the sky, Saturn nears opposition.

Moon nearly first quarter

Celestial News & Events

Join the World in Observing the Moon on September 19th

Disconnect from the digital world for a while — all you have to do is look up.

McGetchin Crater

Solar System

Once-in-a-Century Impact Made a “Cold Spot” on the Moon

In watching an impact's aftermath, scientists have confirmed that such large blasts shake up and cool wide swaths of the lunar surface.

NGC 7331 with supernova 2026aaiv

Celestial News & Events

Second Bright Supernova in Spiral Galaxy NGC 7331 in a Year

A familiar galaxy in Pegasus hosts a supernova bright enough to see in a 4-inch telescope.

Diagram of massive binary star system

Stellar Science

Some Pairs of Stars Weren’t Born That Way

Two massive stars might’ve been born separately before getting tangled in each other’s orbits, revealing a new way that binaries form.

Image of growing giant planet

Exoplanets

Are Moons Growing Around Exoplanet PDS 70c?

New research suggests that the circumplanetary disk surrounding the exoplanet PDS 70c contains a ring of dense dust, and the conditions within this ring may allow baby moons to form.

white, larger-than-person-size detector at the center of LUX

Cosmology

Scientists Found a Potential Dark Matter Particle — What Happens Now?

The recent detection from the LUX-ZEPLIN experiment could point to “heavy” dark matter.

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