A house-size asteroid designated 2026 GD will make a close pass of Earth on April 9, 2026, at 6:59 p.m. EDT (2259 GMT). Discovered just days earlier on April 6, 2026, this asteroid is estimated to be 16 meters (54 feet) in diameter.
During its approach, 2026 GD will pass approximately 155,760 miles (250,000 km) from Earth. Notably, it will come even closer to the moon, passing just 101,000 miles (163,750 km) from the lunar surface at 8:12 p.m. EDT on the same day.
The cumulative impact probability for 2026 GD for orbits that will take it close to Earth between 2082 and 2124 is calculated at 1 in 124,378. It will continue along a 644-day elliptical path beyond the orbit of Mars before returning towards the sun.
Officials have confirmed that the closest approach to the moon poses no threat to the crew of the Artemis 2 lunar mission, which is set to explore the lunar surface.
This event comes on the heels of significant discoveries related to asteroids, including a recent study that identified all five nucleobases in a sample taken from asteroid Ryugu. These nucleobases—adenine, guanine, cytosine, thymine, and uracil—are essential components of life.
According to Toshiki Koga, the lead researcher on the Ryugu study, “Detecting all five nucleobases in extraterrestrial materials shows that the full set of these key molecules can form in space.” He further noted that these molecules may have been relatively common in primitive materials in the early solar system and could have been widely available for delivery to the early Earth and other planetary bodies.
The findings from Ryugu suggest that the components necessary for life may have originated from space, aligning with theories that the molecules essential for life were present in the nebula that formed our solar system.
As the date of the close approach draws nearer, scientists and space agencies are closely monitoring 2026 GD, ensuring that it poses no risk to Earth or its lunar missions. The event highlights the ongoing interest in asteroids and their potential implications for understanding the origins of life and the solar system.
