A combination of a series of three storm systems and a blast of Arctic air are prompting forecasts of an extended cold snap across the US, with temperatures in some parts of the north-central states expected to dip as low as 30ºF below normal. The regions expected to be affected include the Upper Midwest, Great lakes, Ohio Valley, Mid-Atlantic, and New England.

Mashable’s Andrew Freedman describes the February-like conditions that are visiting the continent as yet another consequence of the polar vortex pushing Arctic air in a southeasterly direction. 12 inches of snow is forecast for higher elevations in West Virginia, Virginia, and Maryland, with Philadelphia, New York City, and Boston possibly seeing lighter snowfall on Saturday.
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The Chinese space station, Tiangong-1, re-entered the Earth’s atmosphere on April 1, breaking up over a stretch of the South Pacific roughly 100 kilometers (62 miles) northwest of Tahiti, according to the China National Space Administration. This was confirmed by the United States Air Force 18th Space Control Squadron, an organization tasked with tracking artificial objects in orbit. Due to CNSA’s inability to control the timing of Tiangong-1’s reentry, there were concerns over damage or injuries that might be caused by debris that might have survived reentry; however, none have been reported.
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Dark matter: all mass and no substance, this theoretical type of matter is used by physicists to explain why the universe acts as if it has five times more mass than we can see–basically if galaxies only had the mass that is represented by the visible matter in them, the strain that their rate of spin puts on them would cause them to fly apart. And this strange, invisible substance that doesn’t seem to interact at all with ordinary matter should be distributed as evenly as the rest of the matter in the universe… except that astronomers have recently found a galaxy that contains no dark matter at all, demonstrating that its theoretical presence isn’t as ubiquitous as we thought.
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Audio recordings detailing a recent UFO incident involving commercial airliners have been obtained by The Warzone from the Federal Aviation Administration. The sighting took place over New Mexico on February 24, 2018, and involved the crews of at least two aircraft, belonging to American Airlines and Phoenix Air, with at least one crewmember on each aircraft describing the object as "a UFO".
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