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The ICESat-2 will point lasers at Earth's ice sheets. NASA/Goddard Space Flight Center Conceptual Image Lab

NASA will soon activate the "most advanced laser instrument of its kind" to study Earth's changing polar ice.

The incredibly precise Advanced Topographic Laser Altimeter System (ATLAS) is the main feature of the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) that successfully launched into space from the Vandenberg Air Force Base in California on Sept. 15.

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A glacier flows towards East Antarctica. NASA Goddard Space Flight Center / CC BY 2.0

A section of the East Antarctic Ice Sheet that contains three to four meters (approximately 10 to 13 feet) of potential sea level rise could melt if temperatures rise to just two degrees above pre-industrial levels, a study published in Nature Wednesday found.

Researchers at Imperial College London, the University of Queensland, and other institutions in New Zealand, Japan and Spain looked at marine sediments to assess the behavior of the Wilkes Subglacial Basin during warmer periods of the Pleistocene and found evidence of melting when temperatures in Antarctica were at least two degrees Celsius above pre-industrial levels for periods of 2,500 years or more.

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An army helicopter delivers FEMA supplies to Puerto Rico after Hurricane Maria last year. Mario Tama / Getty Images

As Hurricane Florence threatens the East Coast, a newly released document shows that the Department of Homeland Security (DHS) transferred almost $10 million from the Federal Emergency Management Administration (FEMA) to Immigration and Customs Enforcement (ICE), MSNBC's Rachel Maddow Show reported Tuesday night.

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