Category Astronomy/Space

Engineers propose Solar-powered Lunar Ark as ‘Modern Global Insurance Policy’

Artists rendering of the lunar ark, with cry-preservation modules and a preservation analysis laboratory underground in a lava tube, and an elevator shaft connecting the tube to the surface, where there are solar panels, a Ka-band antenna and an airlock.
Design concept for the lunar ark.

University of Arizona researcher Jekan Thanga is taking scientific inspiration from an unlikely source: the biblical tale of Noah’s Ark. Rather than two of every animal, however, his solar-powered ark on the moon would store cryogenically frozen seed, spore, sperm and egg samples from 6.7 million Earth species.

Thanga and a group of his undergraduate and graduate students outline the lunar ark concept, which they call a “modern global insurance policy,” in a paper presented over the weekend during the IEEE Aerospace Conference.

“Earth is naturally a volatile environment,” said Thanga, a professor of aerospace and mechanical engineering in the UArizona College of Engineering...

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Gigantic Jet spied from Black hole in Early Universe

X-ray: NASA/CXO/JPL/T. Connor; Optical: Gemini/NOIRLab/NSF/AURA;
Infrared: W.M. Keck Observatory; Illustration: NASA/CXC/M.Weiss
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Astronomers have discovered evidence for an extraordinarily long jet of particles coming from a supermassive black hole in the early universe, using NASA’s Chandra X-ray Observatory.

If confirmed, it would be the most distant supermassive black hole with a jet detected in X-rays. Coming from a galaxy about 12.7 billion light-years from Earth, the jet may help explain how the biggest black holes formed at a very early time in the universe’s history.

The source of the jet is a quasar — a rapidly growing supermassive black hole — named PSO J352.4034-15.3373 (PJ352-15 for short), which sits at the center of a young galaxy...

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A Giant, Sizzling Planet may be Orbiting the Star Vega

Vega is the fifth brightest star, excluding the sun, that can be seen from Earth. (Credit: CC image by Stephen Rahn via Wikimedia Commons)

Astronomers have discovered new hints of a giant, scorching-hot planet orbiting Vega, one of the brightest stars in the night sky. The research, published this month in The Astrophysical Journal, was led by University of Colorado Boulder student Spencer Hurt, an undergraduate in the Department of Astrophysical and Planetary Sciences.

It focuses on an iconic and relatively young star, Vega, which is part of the constellation Lyra and has a mass twice that of our own sun. This celestial body sits just 25 light-years, or about 150 trillion miles, from Earth—pretty close, astronomically speaking.

Scientists can also see Vega with telescopes even...

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Most Distant Quasar with Powerful Radio Jets discovered

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With the help of the European Southern Observatory’s Very Large Telescope (ESO’s VLT), astronomers have discovered and studied in detail the most distant source of radio emission known to date. The source is a “radio-loud” quasar — a bright object with powerful jets emitting at radio wavelengths — that is so far away its light has taken 13 billion years to reach us. The discovery could provide important clues to help astronomers understand the early Universe.

With the help of the European Southern Observatory’s Very Large Telescope (ESO’s VLT), astronomers have discovered and studied in detail the most distant source of radio emission known to date...

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