NASA 360 posted a video to its YouTube that's a part of its Planetary Defense series that is detailing asteroids that are close to Earth.
The video was posted to the channel back in October and was recently shared to the NASA 360 Twitter account, where NASA posed itself the question, "What do we know about the asteroids and comets in Earth's neighborhood?". The video showcases what NASA knows about near-Earth asteroids by the numbers, and explains that while the majority of the potentially dangerous near-Earth asteroids have been found, there are still some thousands of undiscovered asteroids still out there in our neighborhood.
For those that don't know, Near-Earth objects (NEOs) are asteroids and comets that are orbiting the Sun and come within 30 million miles of Earth's orbit. The space agency explains in the description of the video that NASA's Planetary Defense Coordination Office was conceived to track, study NEOs, and if the situation presented itself, provide guidance into deflecting a potential threat to Earth. Below are the numbers outlined by NASA in the video.
NASA near-Earth object Statistics
- 26,815 discovered near-Earth objects
- 9,838 known near-Earth asteroids larger than 140 meters
- 15,000 larger than 140 meters left to be found
- 891 known near-Earth asteroids larger than 1 kilometer
- 14 known asteroids passed closer to Earth than the Moon in the past 30 days
- 127 known asteroids passed closer to the Earth than the Moon in the past 365 days
- 100 tons of dust and sand-sized particles that bombard Earth daily
- 160 meters is the length of the asteroid that NASA's Dart mission will impact in order to change its orbit
- 23 years of NASA's Near-Earth Object Observations Program
- 319,500,000 observations submitted to the Minor Planet Center
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