Scientists Model Landscape Formation on Titan, revealing an Earth-like Alien World

These three mosaics of Titan were composed with data from Cassini’s visual and infrared mapping spectrometer taken during the last three Titan flybys, on Oct. 28, 2005 (left), Dec. 26, 2005 (middle), and Jan. 15, 2006 (right). In a new study, researchers have shown how Titan’s distinct dunes, plains, and labyrinth terrains could be formed. (Image credit: NASA / JPL / University of Arizona)

Saturn’s moon Titan looks very much like Earth from space, with rivers, lakes, and seas filled by rain tumbling through a thick atmosphere. While these landscapes may look familiar, they are composed of materials that are undoubtedly different — liquid methane streams streak Titan’s icy surface and nitrogen winds build hydrocarbon sand dunes.

The presence of these materials — whose mechanical ...

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A New Era of Mitochondrial Genome Editing has begun

A new era of mitochondrial genome editing has begun. Scientists successfully achieve A to G base conversion, the final missing piece of the puzzle in gene-editing technology.

Researchers from the Center for Genome Engineering within the Institute for Basic Science developed a new gene-editing platform called transcription activator-like effector-linked deaminases, or TALED. TALEDs are base editors capable of performing A-to-G base conversion in mitochondria. This discovery was a culmination of a decades-long journey to cure human genetic diseases, and TALED can be considered to be the final missing piece of the puzzle in gene-editing technology.

From the identification of the first restriction enzyme in 1968, the invention of polymerase chain reaction (PCR) in 1985, and the demo...

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Breakthrough for Efficient and High-Speed Spintronic Devices

Representation of ultrafast magnetic scattering on ferrimagnets enabled by a bright Ytterbium-based soft x-ray source, which made the cover of Optica. Image : Ella Maru Studio

Scientists have made a major breakthrough on how the spin evolves in the nanoworld on extremely short time scales. Sharing real-time information requires complex networks of systems. A promising approach for speeding up data storage devices consists of switching the magnetization, or the electrons’ spin, of magnetic materials with ultra-short femtosecond laser pulses. But, how the spin evolves in the nanoworld on extremely short time scales, in one millionth of one billionth of a second, has remained largely mysterious...

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Dying Stars’ Cocoons might explain Fast Blue Optical Transients

The cocoon (with jet inside) escapes from the collapsing star.

First model that is fully consistent with all FBOT observations. Ever since they were discovered in 2018, fast blue optical transients (FBOTs) have utterly surprised and completely confounded both observational and theoretical astrophysicists.

So hot that they glow blue, these mysterious objects are the brightest known optical phenomenon in the universe. But with only a few discovered so far, FBOTs’ origins have remained elusive.

Now a Northwestern University astrophysics team presents a bold new explanation for the origin of these curious anomalies. Using a new model, the astrophysicists believe FBOTs could result from the actively cooling cocoons that surround jets launched by dying stars...

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