Below is the list of asteroids that have come close to Earth in 2025.
A list of the 189 known near-Earth asteroid close approaches less than 1 lunar distance () from Earth in 2025, based on the close approach database of the Center for Near-Earth Object Studies (CNEOS).
For reference, the radius of Earth is about . Geosynchronous satellites have an orbit with semi-major axis length of .
The closest approach of Earth by an asteroid (technically a meteoroid) was that of , which has a diameter of . approached at about from the center of the Earth, or above its surface. The largest asteroid to pass within 1 LD of Earth in 2025 was at in diameter, for an absolute magnitude of 24.7. The fastest asteroid to pass within 1 LD of Earth in 2025 was that passed Earth with a velocity with respect to Earth of , while the slowest bypass within lunar distance was that of at a velocity with respect to Earth of .
The CNEOS database of close approaches lists some close approaches a full orbit or more before the discovery of the object, derived by orbit calculation. The list below only includes close approaches that are evidenced by observations, thus the pre-discovery close approaches would only be included if the object was found by precovery, but there was no such close approach in 2025.
This list and the relevant databases do not consider impacts as close approaches, thus this list does not include any of the objects that collided with Earth's atmosphere in 2025, none of which were discovered in advance, but were observed visually or recorded by infrasound sensors designed to detect detonation of nuclear devices.
This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.
Absolute magnitude H âÂÂ¥ 30 (smallest) (size of a person for comparison)
Absolute magnitude 30 > H âÂÂ¥ 29
Absolute magnitude 29 > H âÂÂ¥ 28
Absolute magnitude 28 > H âÂÂ¥ 27
Absolute magnitude 27 > H âÂÂ¥ 26
Absolute magnitude 26 > H âÂÂ¥ 25
Absolute magnitude 25 > H (largest)
Astronomers are also tracking close approaches of larger asteroids beyond one lunar distance, which provides them with an opportunity to study these objects with radar. Examples will be added below.