red sea

Dust plume over Earth’s youngest sea.

The Red sea, an arm of the Indian Ocean, is the youngest sea on Earth. A spreading ridge started pushing Africa and Arabia apart, and has spread down Africa as the continental rifts. Whether this will end up with a splitting of the entire continent, or the african rift will turn into a failed rift graben (called an aulacogen, consisting of downfaulted blocks with old volcanic rocks and lake sediments within) remains unknown.

With a length of over 2,000 Km, and a width of 355, the sea started to open in the Eocene about 30 million years ago, speeding up in the Oligocene. Hydrothermal vents are currently forming metal sulphide deposits in varied areas of its floor. In this image, taken from the ISS, a dust plume is being carried by winds from Africa towards Asia, bringing eroded sediment to rejoin their once-neighbours on the other side of this narrow budding ocean. The Nile river is visible in the upper left of the image.

Loz

Image credit: NASA
http://earthobservatory.nasa.gov/IOTD/view.php?id=81566&src=fb

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Today the Department of Awesome Anamorphic Artwork is catching up with the latest 3D drawings by Brazilian artist João A. Carvalho, aka J Desenhos (previously featured here). Since he was first featured here in 2014, Carvalho has grown even more proficient at creating astonishing optical illusions on simple pieces of notebook paper. Using pencils, colored pencils, markers, and pens, Carvalo makes sheets of paper appear to distort, rippling until they tear open portals to outer space or opening rifts that enable monsters to break through. In one piece a ship sails across an ocean of waves made of undulating lines, while in another Moses parts the lines on a sheet of paper as though they were the waters of the Red Sea:

To check out more of his Carvalho’s amazing drawings, check out his his Facebook community where he shares new work and behind-the-scenes progress shots, as well as anamorphic artwork created by other artists.

[via Bored Panda]

Nembrotha megalocera

…a colorful species of Polycerid nudibranch, that is known to occur in and around the Red Sea and adjacent areas. N. megalocera is a fairly large species, growing up to 45 mm in length. Like other species of nudibranch N. megalocera is predatory in nature, feeding mainly on colonial ascidians. 

Classification

Animalia-Mollusca-Gastropoda-Heterobranchia-Euthyneura-Nudiplerua-Nudibranchia-Euctenidiacea-Doridacea-Polyceroidea-Polyceridae-Nembrotha-N. megalocera

Image: Jon Hanson