Daily Archives: Mar 21, 2026

An antitail, where the tail of a comet turns back on itself, slicing back towards the Sun, occurs in defiance of expectations—and was exactly what NASA found on the interstellar comet 3I/ATLAS in November 2025. In this antitail, there was a defined jet of dust and ions extending towards...

But Mars is not as still as it appears. In the tenuous, rust-hued atmosphere hovering above Jezero Crater, NASA’s Perseverance rover is tuning in, and it’s detected the sizzle of electricity. But not the kinds of lightning that flash across the sky on Earth, breaking free as powerful arcs....

What makes a visiting star system comet so irresistible to scientists and planetary‑defense planners alike? For 3I/ ATLAS, this was because it was rare, had peculiar chemistry, and was perfectly suitable as a safe but challenging target for global tracking exercises. 1. A Rare Interstellar Visitor 3I/ATLAS is just the third...