Template:Selected anniversaries/October 7: Difference between revisions

From Gnomon Chronicles
Jump to navigation Jump to search
No edit summary
No edit summary
Line 58: Line 58:
||2008: George Emil Palade dies ... biologist and physician, Nobel Prize laureate. Pic.
||2008: George Emil Palade dies ... biologist and physician, Nobel Prize laureate. Pic.


||2008: 2008 TC3 (Catalina Sky Survey temporary designation 8TA9D69) was an 80-tonne (80-long-ton; 90-short-ton), 4.1-meter (13 ft) diameter asteroid[2] that entered Earth's atmosphere on October 7, 2008. It exploded at an estimated 37 kilometers (23 mi) above the Nubian Desert in Sudan. Some 600 meteorites, weighing a total of 10.5 kilograms (23.1 lb), were recovered; many of these belonged to a rare type known as ureilites, which contain, among other minerals, nanodiamonds. It was the first time that an asteroid impact had been predicted before its entry into the atmosphere as a meteor. Pic. See Ureilite: suggesting that "the ureilite parent body was a Mercury- to Mars-sized planetary embryo."
File:2008 TC3 - estimated ground path and altitude.png|link=2008 TC3 (nonfiction)|2008: Asteroid [[2008 TC3 (nonfiction)|2008 TC3]] entered Earth's atmosphere and exploded at an estimated 37 kilometers (23 mi) above the Nubian Desert in Sudan. It was the first time that an asteroid impact had been predicted before its entry into the atmosphere as a meteor.  


||2009:  Asteroid Themis-24: the presence of water ice was confirmed on the surface of this asteroid using NASA’s Infrared Telescope Facility. The surface of the asteroid appears completely covered in ice. As this ice layer is sublimated, it may be getting replenished by a reservoir of ice under the surface. Pic.
||2009:  Asteroid Themis-24: the presence of water ice was confirmed on the surface of this asteroid using NASA’s Infrared Telescope Facility. The surface of the asteroid appears completely covered in ice. As this ice layer is sublimated, it may be getting replenished by a reservoir of ice under the surface. Pic.

Revision as of 15:25, 7 October 2020