On November 8th, Earth will have a close encounter with a sizable asteroid. But not too close, thankfully.

The asteroid, designated 2005 YU55, will pass Earth at a distance of about 325,000 km, just inside the orbit of the moon. Asteroids come that close frequently, but 2005 YU55 is notable for its dimensions: 400 meters in diameter, about the size of an aircraft carrier.

The last time an asteroid that big came this close to Earth was 1976, and it looks like it won’t happen again until 2028.

So astronomers are taking the rare opportunity to study a hefty asteroid without having to send a craft into deep space. Scientists will use two of the largest radio telescopes on the planet, one in California and one in Puerto Rico, to make radar images of the asteroid.

Comets and asteroids preserve the building blocks of the planets. And studying them up close provides clues to how planet Earth came to be. So visitors such as 2005 YU55 are welcome—as long as they keep a respectful distance.

Posted by: Soderman/NLSI Staff
Source: http://www.scientificamerican.com/podcast/episode.cfm?id=asteroid-plans-close-earth-flyby-11-11-01

Share →

NESF2020 – Virtual

LSSW – Virtual

Lunar Landing Workshop

Upcoming Events

July


NASA Exploration Science Forum
July 8-10 (VIRTUAL)

JpGU-AGU Joint Meeting 2020
July 12-16 (VIRTUAL)

Mars 2020 Launch
July 17-Aug 5 launch window (Cape Canaveral Air Force Station, FL)

View More Upcoming
View Past Events

SSERVI Team Science

  • Lunar Sonic Booms

    1-12-17_artemis

    Scientists find evidence for collisionless shocks from supersonic solar wind colliding with magnetic anomaly regions on the Moon.

Did you know?

There are two high tides and two low tides every day on every ocean beach on Earth, because of the moon's pull.

Read More