Technology A house-size asteroid just made a rare close pass by Earth

14:20  10 february  2018
14:20  10 february  2018 Source:   cnet.com

How NASA Could Discover Oceans on Distant Planets

  How NASA Could Discover Oceans on Distant Planets Planets too far away to photograph could yield some clues to whether water—and maybe even life—could exist.But first, we have to see exoplanetary mountains. In a new paper to be published in the prestigious journal Monthly Notices of the Royal Astronomical Society, Columbia University astronomers Moiya A.S. McTier and David M. Kipping figured out what it might take to detect mountains on a world too far away to photograph even with our most powerful telescopes.

" Asteroids of this size do not often approach this close to our planet -- maybe only once or twice a year." Asteroid 2018 CB passed closely by Earth on Feb. Because the asteroid made its closest pass during daylight hours in the Western Hemisphere, it's been a little hard to spot it.

Space rocks buzz by us all the time, but we don't get many of this size invading our orbital space more than a few times a year. ⚓️ Leave a Reply and

Space rock block party!© Provided by CNET Space rock block party!

Just days after the "Super Bowl asteroid" passed Earth on Sunday, another space rock buzzed by much, much closer on Friday at around 10:30 am. PT.

Asteroid 2018 CB safely whizzed by our planet at a distance of about 39,000 miles (64,000 kilometers). NASA estimates the asteroid to be between 50 and 130 feet (15 and 40 meters) across.

The larger Asteroid 2002 AJ129 generated a lot of hype before it passed at a safe distance of about 2.6 million miles (4.2 million kilometers), right around the same time the big game kicked off on Sunday. Part of the reason it got so much attention is that astronomers saw it coming.

A spacecraft is using the Martian atmosphere to get closer to the planet

  A spacecraft is using the Martian atmosphere to get closer to the planet The ExoMars orbiter is going strong, and slowing down.The process is called aerobraking, and right now the ESA’s ExoMars Trace Gas Orbiter is going through its last few weeks of the process, after nearly a year of dipping its solar panels and body into the atmosphere of Mars to slow it down and lower it into an orbit closer to the planet’s surface.

" Asteroids of this size do not often approach this close to our planet -- maybe only once or twice a year." Asteroid 2018 CB passed closely by Earth on Feb. Because the asteroid made its closest pass during daylight hours in the Western Hemisphere, it's been a little hard to spot it.

A house - size asteroid just made a rare close pass by Earth . Newly spotted asteroid slips by Earth and nearby satellites. Close . Discuss: See the bus- size asteroid caught buzzing past Earth .

The smaller, closer asteroid, 2018 CB, was just spotted for the first time a few days before whizzing by.

"Although 2018 CB is quite small, it might well be larger than the asteroid that entered the atmosphere over Chelyabinsk, Russia, almost exactly five years ago, in 2013," said Paul Chodas, manager of NASA's Center for Near-Earth Object Studies. "Asteroids of this size do not often approach this close to our planet – maybe only once or twice a year."

<p style=Asteroid 2018 CB passed closely by Earth on Feb. 9 at a distance of about 39,000 miles.

NASA/JPL-Caltech" src="/upload/images/real/2018/02/10/p-style-margin-bottom-1em-padding-0px-0-2em-font-size-13px-asteroid-2018-cb-passed-closely-by-earth-_832495_.img?content=1" />
© Provided by CNET

Asteroid 2018 CB passed closely by Earth on Feb. 9 at a distance of about 39,000 miles.

NASA/JPL-Caltech

You may recall that the Chelyabinsk bolide exploded when it hit the atmosphere above Russia, creating a shock wave that blew out numerous windows on the ground.

Because the asteroid made its closest pass during daylight hours in the Western Hemisphere, it's been a little hard to spot it. But the Virtual Telescope Project based in Italy will be tracking it as it zooms away from us and you can watch the show live below:

More than 20 collisions between vehicles and snowplows prompts warning

  More than 20 collisions between vehicles and snowplows prompts warning More than 20 collisions between vehicles and snowplows prompts warningMore than 20 collisions between vehicles and snowplows so far this winter has prompted the province’s highway maintenance contractors association to issue a warning for drivers to slow down.

A house - size asteroid will give Earth a near-miss on Thursday, giving experts a rare chance to rehearse for a real-life strike threat as it passes inside the TC4 will make its closest approach to Earth just before 05.41 GMT on Thursday, at a point south of Australia, according to ESA and Nasa.

A house - size asteroid just made a rare close pass by Earth . Lots of asteroids have cozied up to our planet lately, including 2018 BD in January and the house - sized 2018 CB, which made a close pass earlier in February.

2018 CB also comes on the heels of another recently discovered asteroid, 2018 CC, which came within 114,000 miles (184,000 kilometers) of us on Tuesday.

It's important to remember that while these asteroids are coming relatively close in space terms, they pose no threat to us. But perhaps someone should check to see if they might intercept the trajectory of "Starman" behind the wheel of Elon Musk's Tesla Roadster.

First published Feb. 8, 1:25 p.m. PT.

Update, Feb. 9, 11:10 a.m. PT:

Details added about the asteroid's Friday pass, as well as a live stream video.

That orbiting Tesla Roadster could stay in space for a long time .
Researchers suggest a small chance the Tesla Roadster will hit Earth in one million years.More like "a few tens of millions of years," said researchers in a study posted to Cornell University's arXiv's site. According to reports, the study will be submitted to the Monthly Notices of the Royal Astronomical Society.

—   Share news in the SOC. Networks

Topical videos:

This is interesting!