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The Aurora Tree: a visual coincidence between the dark branches of a nearby tree and bright glow of a distant aurora, captured by Alyn Wallace in 2017 [source: https://t.co/OwE2hIAkcC]
This composite photo of the sun falling slowly across the oceans of our planet was captured by NASA astronaut Jeff Williams from the International Space Station on April 26, 2016 [source: https://t.co/5sHgibPBuC]
Medicine Nobel Prize goes for temperature and touch discoveries. David Julius and Ardem Patapoutian receive the 2021 Nobel Prize in Physiology or Medicine for their discoveries of how we detect heat and touch [read more: https://t.co/IBCtZ3tWkK]
On June 13, 2013, Aerovelo’s human-powered helicopter Atlas won the AHS Igor I. Sikorsky Challenge and its $250,000 prize. During the record-breaking 64 second flight, Atlas reached a height of 3.3 metres [read more: https://t.co/gaWyd7MicV]
Stare at the red dot on her nose for 30 seconds, then look at a plain wall while blinking fast and discover what is an afterimage: https://t.co/CXH5fLqur0
Cetomimidae is a family of small, deep-sea cetomimiform fish. They are among the most deep-living fish known, with some species recorded at depths in excess of 3,500 m (11,500 ft) [read more: https://t.co/vFTtCVy7Ej] [source of the gif: https://t.co/KhD31Jkeso]
Botulinum toxin is the most poisonous substance known. It is estimated that a single gram of crystalline toxin, evenly dispersed & inhaled, can kill more than one million people and a couple of kg would kill every human on earth https://t.co/d41GjM2Lup [https://t.co/wlL22lCAHc]
44 years ago #Today, @NASAVoyager 1 launched from Earth: this is one of its best shots, Jupiter and Europa, captured in 1979 and seen here in a beautiful processing by Alexis Tranchandon / Solaris https://t.co/gbELd6nnQZ
The Paraceratherium is probably the largest terrestrial mammals that has ever existed: it lived 23 million years ago a and its weight is estimated to have been 15 to 20 tonnes; the shoulder height was about 4.8m and the maximum length about 7.4m https://t.co/kDyETOehIF
Obsidian is an igneous rock that forms when molten rock cools so rapidly that atoms are unable to arrange into a crystalline structure. The result is a volcanic glass with a smooth texture that breaks with a conchoidal fracture [source of the gif: https://t.co/LtlfkMYdrL]