• How to capture and redirect a near-Earth asteroid

    Last month NASA released new photos and video animations depicting the agency's planned mission to find, capture, redirect, and study a near-Earth asteroid. The images depict crew operations including the Orion spacecraft's trip to and rendezvous with the

  • What is a sungrazing comet?

    Sungrazing comets are a special class of comets that come very close to the Sun at their nearest approach, a point called perihelion. To be considered a sungrazer, a comet needs to get within about 850,000 miles from the sun at perihelion. Many come even closer, even

  • Sungrazing comet and farside full-halo CME

    An icy comet with estimated size of few tens of meters plunged into the Sun on August 19/20, 2013 but just before it dissipated, a far-side region on the Sun expelled a magnificent full-halo CME.

    Today's comet belonged to Kreutz Sungrazer family which

  • Sungrazing comet visible on SOHO Lasco C3 imagery today

    A small comet is diving toward the Sun today, August 19, 2013 and is visible on SOHO Lasco C3 imagery. It entered visual field of Lasco C3 coronagraph at 07:54 UTC on August 18th.

    The comet belongs to Kreutz Sungrazer family. Those

  • NPP sees aftermath of the Chelyabinsk meteor

    A meteor weighing 10,000 metric tons exploded only 23km above the city of Chelyabinsk in Russia on February 15, 2013. Unlike previous such events, this time scientists had the highly sensitive OMPS instrument on NPP to deliver unprecedented data and help them track and

  • Meteor strikes, punches hole 2 meters deep – China

    A meteor has reportedly crashed at a dump site in a village of northwest China around 02:00 local time on Thursday, August 1, 2013. Meteorite impact left a 3 meter wide and 2 meter deep crater. 

    Authorities reported no casualties. Search for meteorite