Chelyabinsk Meteor

​As highlighted by the Chelyabinsk meteor impact of 2013 and frequent fly-bys of asteroids, we need to keep watching the skies for any space rocks that may pose a threat. Teams of astronomers doing that have hit a milestone of 15,000 near-Earth objects (NEOs), and there’s plenty more still to find.

If we did learn that an asteroid was actually going to strike the Earth in a month, what would the authorities do? To find out, the European Space Agency (ESA) held its first ever mock asteroid drill to work on solutions and identify problems in how to handle such a catastrophe.

Last Friday, NASA announced a new report published in Science that used videos and eyewitness accounts to provide new insights into the Chelyabinsk incident and the nature of the object that caused it.

Low-frequency sound from the Chelyabinsk meteor traveled across the globe and was picked up as far away as Antarctica 15,000 km (9,320 miles) away.

The European Space Agency (ESA) is assessing the information about the Chelyabinsk meteor that exploded last week over Russia.

Deep Space Industries (DSI) proposes setting up sentry lines in space to track and study rogue asteroids posing a threat to Earth.