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Between 3.7 and 4.5 billion years ago, the Earth was being bombarded by meteors, at a rate about eight to 11 times higher than today. (Photo: Pixabay)

Dino-killing asteroid caused Earth to heat up for 1,00,000 years

The monumental event is a rare case where Earth's systems were perturbed at a rate greater than what's occurring now...

27 May 2018 3:46 PM IST

- This artists rendering provided by the European Southern Observatory shows the interstellar object named Oumuamua which was discovered on Oct. 19, 2017 by the Pan-STARRS 1 telescope in Hawaii. In the Wednesday, June 27, 2018 edition of the journal Nature, a European-led team makes the case it is a comet, not an asteroid. (Photo: AP)

Comet or asteroid? Scientists ID interstellar visitor

Telescopes first spotted the mysterious red-tinged object last October as it zipped through the inner solar system.

28 Jun 2018 8:52 AM IST

The computer graphics image provided by the Japan Aerospace Exploration Agency (JAXA) shows asteroid explorer Hayabusa2 landing on a crater that it made. (Photo: AP)

Japan space explorer makes it to asteroid for collecting samples

The unmanned Hayabusa2 spacecraft reached its base of operations about 20KM from the asteroid and some 280 million KM...

27 Jun 2018 9:29 AM IST

Throughout its 4.5-billion-year history, Earth has been repeatedly pummelled by space rocks that have caused anything from an innocuous splash in the ocean to species annihilation.

Are asteroids humanity's 'greatest challenge'?

Astrophysicists monitoring the risk classify objects into sizes ranging from a few millimetres to behemoths 10...

28 Jun 2017 5:03 PM IST

Nasa has pinpointed C/2016 U1 NEOWISE as a comet, which is set to fly close to Earth this week.

NASA probe begins search for elusive Earth-Trojan asteroid

The MapCam camera will take 135 survey images that will be processed and examined by the mission's imaging scientists.

10 Feb 2017 3:47 PM IST