Newly Discovered Asteroid to Make Close Pass by Earth
Newly discovered asteroid 2026 JH2 will safely pass just 90,000 km above Earth on 18 May, offering astronomers a rare and dramatic close flyby.
ground.newsHere’s the latest on asteroid 2026 JH2 based on recent public reporting.
What happened
- 2026 JH2 made a very close pass by Earth in May 2026, with estimates placing closest approach around May 18, 2026 at roughly 90,000 to 91,000 km (about 0.24 lunar distances) from Earth. This is closer than many satellites, but not on an impact trajectory.[1][3][9]
- Early assessments indicated no impact threat and that the asteroid is well below the size threshold for a Potentially Hazardous Asteroid (PHA); its estimated size is around tens of meters (often reported 15–35 m range).[3][1]
What to know about risk
- The object was characterized as having a short observation arc with relatively high uncertainty for its path (condition code around 7–9 in some reports), meaning the exact trajectory was not yet well constrained at the time of discovery. Post-flyby astrometry was expected to substantially reduce this uncertainty.[1][3]
- There was widespread media coverage warning that, even if it had struck Earth, a 15–35 m object would produce limited regional damage but could still be hazardous to people and property if it impacted or produced airbursts; however, the consensus was that no impact occurred.[4][3]
Visibility and measurements
- Reports suggested the flyby offered an opportunity for observers to view or image the object, with magnitudes commonly described around 11–12 around closest approach, making it accessible to amateur telescopes under good conditions.[3][1]
- Various outlets highlighted how detection gaps exist for small near-Earth objects and that this event underscored the challenges of early warning for sub-20-meter bodies.[7][4]
Media and commentary
- Several space-news outlets and hobby channels produced rapid analyses and live-streamed discussions around the event, often noting the limits of current planetary defense capabilities for small NEOs.[5][8][4]
Bottom line
- 2026 JH2 did not pose an impact threat during its May 2026 close approach, and its size places it well below the PHA threshold. If you’re curious for the latest orbital updates or refined future-Earth impact probabilities, I can pull the newest official measurements from space agencies and JPL’s database and summarize them with sources. Would you like me to do that?[1][3]