Four years ago, NASA punched an asteroid. Europe’s Hera probe arrives this month to inspect the wreckage
AI-summarised brief · reviewed before publication
NASA’s DART spacecraft struck the small asteroid Dimorphos in September 2022, shortening its orbit around the larger Didymos by about 33 minutes and proving a planetary‑defense technique. Two years later, the European Space Agency’s Hera probe, launched in October 2024, has arrived at the Didymos system to conduct detailed inspections. Hera will map the impact site, assess crater size, and search for debris, while deploying two small probes—Milani and Juventas—to analyze surface composition and internal structure. The mission will clarify the collision’s effects and refine future deflection strategies.
💡 Why It Matters
- · By providing the first close‑up, high‑resolution study of an asteroid that has been deliberately struck, Hera will validate and improve the methods used to alter potentially hazardous objects, strengthening Earth’s planetary‑defense capabilities.