March 12, 2026
Asteroid nudge, comment section landslide
NASA's DART spacecraft changed an asteroid's orbit around the sun
Space rock nudged! Propellers, Armageddon jokes, and 'Captain Obvious' in the comments
TLDR: NASA’s DART hit an asteroid and even slowed its pair’s orbit around the sun by a tiny, measurable amount. Commenters split between awe and eye‑rolls, pitching propellers, cracking Armageddon jokes, and calling it obvious—while scientists say these baby steps could one day protect Earth.
NASA just did a cosmic fender-bender — on purpose. The DART mission slammed a probe into a small asteroid in 2022 and not only shrank its 12‑hour dance around its partner by 32 minutes, but a new study says the duo’s trip around the sun is now ever‑so‑slightly slower. It’s the first time humans have measurably changed a celestial orbit, and the comments went orbital.
The hype squad cheered the historic nudge and the nerdy way it was confirmed — tiny “star blinks” watched by globe‑trotting skywatchers. But the thread quickly split. One camp was all about bigger brain schemes, with a top‑liked hot take proposing we “actually land … and use propellers to change its trajectory.” Another crowd geeked out over the physics twist: the impact spewed rocks backwards, giving the asteroid an extra shove — “loss of mass as a means of propulsion,” as one put it.
Then came the memes. One commenter deadpanned, “which country did you aim it to?” and the Armageddon jokes flew — finally, a plan that doesn’t involve oil drillers in space. The resident grump checked in too: “Captain Obvious strikes again,” dismissing the whole thing as textbook stuff.
Meanwhile, science rolled on: debris that escaped stole momentum, and the pair’s solar orbit slowed by more than 10 micrometers per second — a tiny change with planet‑saving potential to be double‑checked by ESA’s Hera later this year. Internet verdict? Equal parts wow, why, and wisecracks.
Key Points
- •DART’s 2022 impact shortened Dimorphos’ ~12-hour orbit around Didymos by 32 minutes.
- •Researchers report the Didymos–Dimorphos pair’s heliocentric motion slowed by >10 micrometers per second.
- •Ejected debris that escaped the system carried away momentum, contributing to the solar-orbit change.
- •Astronomers used 22 stellar occultation measurements (Oct 2022–Mar 2025) to quantify the change, finding the solar orbit is ~150 ms slower than before impact.
- •ESA’s Hera mission is expected to confirm and expand on these results with in-situ follow-up observations later this year.