Astronomy Archives

Earth Photobombs the Sun in Rare Satellite Image from NOAA’s GOES-19

Earth photobombs the sun in satellite image photo of the day for Oct. 23, 2025 - Space

NOAA’s GOES-19 satellite captured a rare image of Earth silhouetted against the Sun during a calibration maneuver on October 23, 2025. See the stunning photo and understand why this alignment is so unusual.

The Largest Supermoon of 2025: When to See the November Beaver Moon

When is the next full moon? Beaver moon will be largest, brightest supermoon of 2025 - Bergen Record

Find out when the November 2025 Beaver Supermoon, the largest and brightest full moon of the year, will occur. Plus, learn the science behind supermoons.

Interstellar Object 3I/ATLAS Confirmed as Comet by Giant Jet Aimed at Sun

New images of interstellar object 3I/ATLAS show giant 'jet' shooting toward the sun - Live Science

New images of the interstellar object 3I/ATLAS reveal a massive jet of gas and dust aimed at the Sun, confirming its cometary nature. Learn what this means for objects from outside our solar system.

Rare Green Comet Makes Closest Pass Over California, Ending 1,000-Year Journey

Green comet to fly over Calif., won't be seen again for 1,000 years - SFGATE

A rare green comet made its closest pass over California, marking an event that won’t repeat for 1,000 years. Learn why it’s green and how to view long-period comets.

Interstellar Comet 3I/ATLAS Develops Peculiar Solar Tendril

Mysterious Interstellar Object Has Sprouted a Tendril Reaching Toward the Sun - Futurism

An interstellar comet, 3I/ATLAS, has developed a mysterious tendril pointing towards the Sun, perplexing astronomers. Learn about this unique celestial event.

Comet Lemmon’s 2025 Close Approach: Capital Region Viewing Guide

Comet Lemmon 2025 viewing guide for the Capital Region: Timing, tips and forecast - Times Union

Don’t miss Comet Lemmon’s closest approach on Feb 11, 2025! Get Capital Region viewing times, tips, and weather forecast for this rare celestial event.

Astronomers Detect Smallest Dark Matter Clump, Million Times Sun’s Mass

Scientists May Have Found the Smallest Clump of Dark Matter Ever Seen — and It’s Still a Million Times Heavier Than the Sun - ZME Science

Astronomers detect the smallest dark matter clump ever, a million times heavier than the Sun, using gravitational lensing. Learn about this groundbreaking discovery and its implications for dark matter theories.

Interstellar Visitor 3I/ATLAS Prepares for 2025 Solar Conjunction

The Imminent Solar Conjunction of 3I/ATLAS - Avi Loeb – Medium

Discover the 2025 solar conjunction of interstellar object 3I/ATLAS. Learn about its significance, observational challenges, and what scientists hope to uncover about this cosmic visitor. Read more!

Rare Double Comet Sighting: Lemmon & SWAN Brighten 2025 Skies

Double comet alert! Comets Lemmon and SWAN will reach their brightest this week — here's how to spot them - Live Science

Don’t miss the rare double comet alert! Comets Lemmon and SWAN reach peak brightness this week in 2025. Learn how to spot them with binoculars.

Cosmic ‘Red Dots’: Webb Solves Early Universe Galaxy Mystery

What happened to those 'little red dots' Webb observed? - Phys.org

New Webb research confirms mysterious ‘red dots’ are young, massive, dusty galaxies from the early universe. Discover how NIRSpec unveiled this cosmic secret.

Sharpening the James Webb Telescope’s Vision: A Million-Kilometer Alignment

How we sharpened the James Webb telescope's vision from a million kilometers away - Phys.org

Discover how scientists precisely aligned the James Webb Space Telescope’s mirrors from 1.5 million km away, unlocking its incredible cosmic vision. Learn about the seven-step process and its impact on astronomy.

Astronomers Witness Rare Double Stellar Explosion in Supernova Remnant

Astronomers capture first image of a star that exploded twice - Earth.com

Astronomers confirm a star exploded twice, revealing new insights into Type Ia supernovae. Learn about this landmark discovery in SNR 0509-67.5.