A Visitor From Beyond the Solar System Astronomers around the world are buzzing over the appearance of comet 3I/ATLAS, an object that entered our Solar System from interstellar space. This cosmic interloper
Meteor Showers and Fireballs This weekend’s meteor activity will be modest. No major shower peaks on Sept 28–29. The Orionids (parent comet Halley) have just started but are weak – current rates
A Cosmic Kick: Newborn Black Hole Sent Careening Through Space On April 12, 2019, two black holes collided 2.4 billion light-years away – an event detected as gravitational-wave signal GW190412. What happened
A rare Black Moon occurred on August 23, 2025, as Summer 2025 had four new moons (June 25, July 23, Aug 23, Sept 21), yielding ultra-dark skies for Aug 24–26. Perseid meteors,