#asteroid

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jbz @jbz@indieweb.social · Aug 01, 2026
☄️ Billions of people—and multiple spacecraft—may see a ‘once-per-millennium’ asteroid flyby in 2029 「 Initial calculations suggested the roughly 340-meter-diameter rock had a one-in-37 chance of impacting Earth in 2029. Careful tracking, however, subsequently dropped those odds to zero. But Apophis’s close approach in 2029 will still offer “a once-per-millennium natural experiment 」 https://www.scientificamerican.com/article/spacecraft-will-swarm-asteroid-apophis-during-fateful-2029-earth-flyby/ #apophis #science #asteroid
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TKSST • seethis.tv 🌈🪐✨ @tksst@fediscience.org · Jul 20, 2026
💁🏻‍♀️ TIL: ☄️🌍 A mapping project shared at the University of #Padua shows when and where billions of people can see #asteroid #Apophis during its safe 2029 flyby. Scientists calculated that the #space rock will be bright enough for naked eye viewing across #Europe, #Africa, and #Asia, and it will pass closer to our #planet than many #weather #satellites. 👉 https://www.livescience.com/space/asteroids/shared-cosmic-experience-potentially-hazardous-asteroid-apophis-could-be-visible-to-90-percent-of-earths-population-during-ultraclose-2029-flyby-new-maps-reveal #astronomy #science #maps #nasa #earth
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Astro Hawk (Ian Kluft) ✅🚀🛰️ @AstroHawk@spacey.space · Sep 09, 2025
"Apophis flyby in 2029 will be the first time a potentially hazardous asteroid has been visible to the naked eye" by @LiveScience@flipboard.com - #Asteroid #99942Apophis will make a close pass by Earth on April 13, 2029. Earth will not be affected. But scientists are gearing up to observe how Earth's gravity changes the orbit of the asteroid, and possibly deforms its shape. There's so much to learn for #PlanetaryDefense / #PlanetaryDefence for the future. https://www.livescience.com/space/asteroids/apophis-flyby-in-2029-will-be-the-first-time-a-potentially-hazardous-asteroid-has-been-visible-to-the-naked-eye #astronomy #LowFlyingRocks
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Astro Hawk (Ian Kluft) ✅🚀🛰️ @AstroHawk@spacey.space · Jul 19, 2026
Replying to @AstroHawk@spacey.space
"'Shared cosmic experience': 'Potentially hazardous' asteroid Apophis could be visible to 90% of Earth's population during ultraclose 2029 flyby" by @LiveScience@flipboard.com - Every continent except North America will have some nighttime hours with view of the near-Earth #asteroid #99942Apophis during its fly-by on April 13, 2029. Closest point will be 19,000mi/30,600km from Earth's surface, which is closer than geosynchronous satellites! https://www.livescience.com/space/asteroids/shared-cosmic-experience-potentially-hazardous-asteroid-apophis-could-be-visible-to-90-percent-of-earths-population-during-ultraclose-2029-flyby-new-maps-reveal #Apophis #NEA #NEO #astronomy #LowFlyingRocks
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TKSST • seethis.tv 🌈🪐✨ @tksst@fediscience.org · Jul 16, 2026
💁🏻‍♀️ TIL: ☄️🧂 A #meteorite that crashed through a #NewJersey home in 2024 contained preserved salts and organic compounds from its parent #asteroid, evidence of ancient brines interacting with #carbon #chemistry. Researchers found amino acids and other #prebiotic #molecules in the rock. The findings offer new clues about how life’s building blocks may have been delivered to early #Earth. 👉 https://www.seti.org/news/alien-world-chemistry-found-inside-meteorite/ #space #science #astrobiology #seti #nasa #aminoacids #solarsystem #earthscience #meteor
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Daniel Fischer @cosmos4u@scicomm.xyz · Jul 05, 2026
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AkaSci 🛰️ @AkaSci@fosstodon.org · Jul 04, 2026
Replying to @AkaSci@fosstodon.org
Also, the JAXA Hayabusa2 spacecraft will fly by asteroid Torifune on Sunday July 5. It's objective is to test navigation systems for a future asteroid deflection mission. See https://fosstodon.org/@AkaSci/116841633571799400 #Space #Asteroid #Science 3/n
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AkaSci 🛰️ @AkaSci@fosstodon.org
Remember Hayabusa2, the plucky JAXA spacecraft that visited asteroid Ryugu in June 2018, scooped up some rock samples and returned them to Earth in December 2020? It's still out there. It will fly by asteroid Torifune on Sunday July 5, at a relative speed of 5 km/s and a closest distance of 1 km. The data from this flyby will help accurately guide probes to impact and deflect small asteroids in future. In 2031, Hayabusa2 will rendezvous with asteroid 1998 KY26. https://global.jaxa.jp/press/2026/06/20260609-1_e.html 2/n
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AkaSci 🛰️ @AkaSci@fosstodon.org · Jun 30, 2026
Today, June 30, is Asteroid Day. On this UN designated day, events are held globally to educate the public and to raise awareness about asteroids, and about the science of defending our planet from future asteroid impacts. June 30 marks the date of Earth’s largest asteroid impact in recorded history, the Siberia Tunguska event, in 1908. https://cneos.jpl.nasa.gov/stats/totals.html #Asteroid 1/n
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Khurram Wadee ✅ @mkwadee@mastodon.org.uk · Jun 30, 2026
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Mikko Tuomi @mustapipa@scicomm.xyz · Apr 28, 2026
Boosted by hypebot @hypebot@goingdark.social

The White House announced a plan to cancel over 50 #space missions as part of a devastating 46% cut to #NASA #science.

The proposal would likely eliminate thousands of jobs at an agency that has just launched astronauts to the #Moon for the first time in decades, and dozens of other space missions would see their operations reduced or slowly wound down to a halt.

The following missions are to be cancelled:

  1. The Habitable Worlds Observatory being built to search for #life on dozens of Earth-like planets beyond our Solar System while addressing fundamental questions about our #Universe.

  2. OSIRIS-APEX capitalizes on the exceptionally rare 2029 Earth flyby of the potentially hazardous #asteroid #Apophis to advance planetary defense strategies and reveal how Earth’s #gravity alters an asteroid’s surface and interior.

  3. The ExoMars Rosalind Franklin rover will deliberately search for signs of life on #Mars by analyzing the composition of samples collected from as deep as 2 meters below the surface.

  4. The DAVINCI mission is an atmospheric probe that will be deployed to our sister planet, #Venus, and provide the first detailed measurements of the composition and chemistry of its #atmosphere.

  5. Initially focusing on #Jupiter’s interior, atmosphere, and aurora, #Juno is already orbiting Jupiter and has expanded during its extended mission to be a full system explorer capable of investigating the Galilean satellites, rings, inner moons, radiation belts, and boundaries of Jupiter’s magnetosphere.

  6. VERITAS will create unprecedented, global, high-resolution datasets of Venus designed to answer a fundamental question for rocky #planets: how did Earth and her twin Venus evolve into two entirely different examples of planetary #habitability?

https://www.planetary.org/articles/meet-the-people-behind-nasas-endangered-missions

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Flipboard Science Desk @ScienceDesk__dup_11408@flipboard.social · Mar 09, 2026
Spacecraft’s impact changed asteroid’s orbit around the sun in a save-the-Earth test, study finds. From @AssociatedPress@flipboard.com: "It’s the first time that a celestial body’s orbit around the sun was deliberately changed." https://flip.it/orv-g_ #NASA #Space #Science #Asteroid
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Flipboard Science Desk @ScienceDesk__dup_11408@flipboard.social · Mar 06, 2026
No chance asteroid will slam into the moon in 2032, NASA says. @AssociatedPress@flipboard.com reports: https://flip.it/x.L_Qc #Moon #Space #NASA #Asteroid #Science
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