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1 maj 2023 · The Near-Earth Object Program coordinates NASA-sponsored efforts to detect, track and characterize potentially hazardous asteroids and comets that could approach the Earth. Stay up-to-date on which asteroids and comets wander near Earth. The website shows distances that the closest asteroids and comets are to our home planet.
Apophis is about 1,100 feet (340 meters) in width. It’s expected to safely pass close to Earth – within 19,794 miles (31,860 kilometers) from our planet’s surface – on April 13, 2029. This will be the closest approach to Earth by an asteroid of this size that scientists have known about in advance.
In fact, collisions of asteroids with the early Earth may have been the key to delivering water to our planet (e.g., Daly & Schultz, 2018), enabling life as we know it. Now, billions of years later, the influx of small bodies in the inner Solar System is much lower.
31 lip 2018 · View full video. | This NASA animation depicts a mapping of the positions of known near-Earth objects (NEOs) at points in time over the past 20 years. It finishes with a map of all known...
1 paź 2024 · Each month, NASA’s Planetary Defense Coordination Office releases a monthly update featuring the most recent figures on NASA’s planetary defense efforts, near-Earth object close approaches, and other timely facts about comets and asteroids that could pose an impact hazard with Earth.
26 sie 2023 · As leftover debris from the formation process, studying the chemical makeup of comets and asteroids can help us understand the material from which the planets formed. In this talk, we’ll discuss how these near-Earth objects (NEOs) are opportunities for discovery.
The following table shows close approaches to the Earth by near-Earth objects (NEOs) limited as selected in the “Table Settings” below. Data are not available prior to 1900 A.D. nor after 2200 A.D. Data are further limited to encounters with reasonably low uncertainty. Check out our brief video tutorial.
