3I/ATLAS: Where is the interstellar comet headed next after skimming past Earth?
On Friday, December 19, the comet made its closest pass to Earth, safely cruising by at a distance of approximately 167 million miles.
4 hours ago
3I/ATLAS latest update: Where to watch the interstellar comet livestream on December 19
The object was first spotted on July 1, 2025, by the NASA-funded ATLAS survey telescope based in Rio Hurtado, Chile.
3 days ago
Here are some quick facts about 3I/ATLAS ahead of its closest approach to Earth
Discovered in July by the ATLAS telescope in Chile, this comet is on a one-way trip through our solar system.
3 days ago
Interstellar comet 3I/ATLAS's closest approach to Earth: Date, time and naked-eye visibility
The object was first officially spotted on July 1, 2025, by the NASA-funded ATLAS survey telescope based in Rio Hurtado, Chile.
3 days ago
Comet 3I/ATLAS makes its closest approach to Earth: Skywatching tips, livestream and more
The closest approach of comet 3I/ATLAS to Earth will happen on Friday, 19 December 2025, at a distance of 1.798 Astronomical Units.
4 days ago
How far away is interstellar comet 3I/ATLAS from Earth on December 17? Latest coordinates
Now passing through the constellation Leo, the interstellar object sits at a distance so immense that the light from it takes about 15 minutes to reach us.
5 days ago
Interstellar comet 3I/ATLAS will reach its closest approach to Earth this week—will it be visible to the naked eye?
The interstellar comet 3I/ATLAS is currently visible in the constellation Leo, though its faint brightness of magnitude 12.5 means it is difficult to spot.
7 days ago
2025 Ursid meteor shower peaks next week: Here's when and where you can see it
Observers will have ideal viewing conditions this year, as the New Moon guarantees zero moonlight interference.
7 days ago
Comet 3I/ATLAS is just days away from its closest approach to Earth—latest coordinates and viewing tips
The comet's closest approach to Earth will occur on Friday, December 19, 2025, when it will pass at a distance of approximately 167 million miles.
Dec 10, 2025
Don't miss the century's longest Total Solar Eclipse — here's the exact date
An event like this will not take place again before 2045.
Dec 9, 2025
The Geminid meteor shower peaks next week: Here's when and how you can see it
Stargazers in both the Northern and Southern Hemispheres will be able to view the shower, though the display is typically superior from the North.
Dec 8, 2025
Here's how you can spot Saturn's moons: Titan, Rhea, Dione and more
Not all of Saturn’s moons are visible in space; however, some can be bright enough to be traced by a reliable telescope from Earth.
Dec 8, 2025
Amateur astronomer captures Mercury's magnificent and bright comet-like tail. See picture
Plume of gas ejected from Mercury’s atmosphere extended to form a comet-like tail, which was captured by the astrophotographer.
Dec 5, 2025
Moon phases: Date and time of the next Full Moon
As the New Year draws near, the next Full Moon is also on its way — arriving just after the December Cold Moon.
Dec 5, 2025
December’s full moon—the last supermoon of the year—peaks tonight: Here's what to know
From the best time to watch the Cold Moon to the date and time of the first supermoon of 2026, here's everything you need to know.
Dec 4, 2025
Comet 3I/ATLAS's closest approach: NASA’s December 2025 skywatching tips
With the interstellar visitor headed for its closest approach to our home planet, NASA has advised people on how to best observe the comet 3I/ATLAS.
Dec 2, 2025
5 stunning lunar events to watch after the Cold Supermoon in December 2025
The last month of the year brings various lunar events, and here are a few magnificent sights to witness post the Cold Moon.
Dec 2, 2025
Extraordinary Moon features to spot during the Cold Moon 2025—with or without binoculars
This December's Cold Moon is also a Supermoon and will turn full on the 4th of the month.
Dec 2, 2025
December 2025 skywatching guide: Cold Supermoon, Geminid meteor shower and more
A fantastic month for stargazing awaits us, as December will bring major lunar events, sparkling meteor showers, and visible planets in the sky.
Nov 28, 2025
Bright green fireball traveling close to 100,000 mph lights up sky above Michigan's Great Lakes
Several eyewitnesses reported the sighting before NASA looked into it.
Nov 28, 2025