"Flashback" --Carl Sagan on How We Would Communicate With Advanced Alien Life (Weekend Feature/Video)

 

Maxresdefault



 

If life exists elsewhere in the Universe, would we be able to communicate with it? In this clip from the 1977 Royal Institution Christmas Lecture, "The Planets", Carl Sagan demonstrates how we could send a signal that would make sense to intelligent beings that have evolved independently from us.

Continue reading ""Flashback" --Carl Sagan on How We Would Communicate With Advanced Alien Life (Weekend Feature/Video)" »


Today's "Planet Earth Report"--"Sea Nomads: The Superhumans Living Among Us"

 

6a00d8341bf7f753ef01b7c930aab7970b-800wi

"I think it's fascinating to see just how extraordinary this population is, to think that they're almost like superhumans living among us with these really extraordinary capabilities. But I also think natural selection is a lot more powerful than we sometimes give it credit for, and maybe we should be looking for it in more places than we thought."

Continue reading "Today's "Planet Earth Report"--"Sea Nomads: The Superhumans Living Among Us"" »


Today's Top Space Headline --"It's About Expanding Earth! Over the Next 10 Years, Space Will Become an Industrial Zone Filled with Orbiting Factories"

 

Iss044e045215_lrg

"Over the next 10 years, space will become an industrial zone filled with orbiting factories. Like oil platforms on the ocean, but not polluting,” says entrepreneur Jason Dunn, Made In Space’s co-founder and chief technology officer. "We could have structures in space so big, they could be the backbone of huge internet telecommunications antenna,” Dunn says. “Or a giant space station colony, or giant arrays of solar panels. Or we could send robots to the surface of the moon, or Mars, and use resources there to build habitats.”

Continue reading "Today's Top Space Headline --"It's About Expanding Earth! Over the Next 10 Years, Space Will Become an Industrial Zone Filled with Orbiting Factories"" »


Today's Top Science Headline --100,000-year-Old Hashtag: "The First Human Symbol?"

 

Large_1476638962228807906

 

"Cave art was part of the package deal in terms of how homo sapiens came to have this very high-level cognitive processing," says Miyagawa, a professor of linguistics and the Kochi-Manjiro Professor of Japanese Language and Culture at MIT. "You have this very concrete cognitive process that converts an acoustic signal into some mental representation and externalizes it as a visual."

Continue reading "Today's Top Science Headline --100,000-year-Old Hashtag: "The First Human Symbol?"" »


Today's "Planet Earth Report" --WW 11 High-Tech Nazi Submarine Found --"On a Mysterious Mission to South America"

Type-xxi_4

Two days before the Allied forces declared victory over Nazi Germany at the end of World War II, a high-tech German submarine set out from Denmark on a mysterious mission. The sub was a brand-new Type XXI U-boat, hailed as the most advanced Nazi submarine of its time. It was deadly quiet, superfast and allegedly capable of traveling from Europe to South America without having to surface.

Continue reading "Today's "Planet Earth Report" --WW 11 High-Tech Nazi Submarine Found --"On a Mysterious Mission to South America"" »


Cluster of Stars Harbors a Massive Mystery Source of Cosmic Rays

 
NGC-3603-an-open-star-cluster-and-starburst-region1

"This particular source of gamma rays was found towards an unusual cluster of stars which harbors one of the Milky Way's most massive and energetic young stars, a luminous blue variable star called LBV1806-20," says Associate Professor Gavin Rowell, from the University of Adelaide's High Energy Astrophysics Group and leader of Australia's participation in HESS -the High Energy Stereoscopic System (HESS) gamma ray telescopes in Namibia. "The cluster of stars also harbors a rare, extremely magnetic, neutron star known as a magnetar, but we think the gamma ray emission could be linked to the luminous blue variable star.

Continue reading "Cluster of Stars Harbors a Massive Mystery Source of Cosmic Rays" »


From the Farside --"Prehistoric Humans May Have Performed Brain Surgery"

  98120

 

Oh, my! Humans have been performing brain surgery—or at least drilling holes in one others’ skulls—for thousands of years, reports today's Science. But how did they get their practice? A new study analyzing an exquisitely bored hole in the skull of a 5000-year-old cow suggests they may have honed their skills on animals.

Continue reading "From the Farside --"Prehistoric Humans May Have Performed Brain Surgery"" »


Z-Machine --World’s Most Powerful X-ray Source "Will Create a White-Dwarf Star on Earth" (WATCH Today's 'Galaxy' Stream)

 
Maxresdefault

“The really amazing thing about this research is that it changes the way astronomy has been conducted in the past,” said Don Winget, the director of CAPP and a professor in the Department of Astronomy. “There were a lot of things we thought we understood, or knew we didn’t understand in astrophysics. By re-creating those conditions and making real measurements in the laboratory, we’re changing how we think of not only astronomy as a field, but how we think of specific astronomical objects.”

Continue reading "Z-Machine --World’s Most Powerful X-ray Source "Will Create a White-Dwarf Star on Earth" (WATCH Today's 'Galaxy' Stream)" »


Today's "Planet Earth Report" --“A Highly Altered, Degraded System” -Since 2016, Half of All Coral in the Great Barrier Reef Has Died

  Aktualita-detail-center_tmb_4921 (1)

 

"Once upon a time, there was a city so dazzling and kaleidoscopic, so braided and water-rimmed, that it was often compared to a single living body. It clustered around a glimmering emerald spine, which astronauts could glimpse from orbit. It hid warm nooks and crannies, each a nursery for new life. It opened into radiant, iris-colored avenues, which tourists crossed oceans to see. The city was, the experts declared, the planet’s largest living structure."

Continue reading "Today's "Planet Earth Report" --“A Highly Altered, Degraded System” -Since 2016, Half of All Coral in the Great Barrier Reef Has Died" »


"The Star Killer" --Rare 'Butterfly' Galaxy with Two Supermassive Black Holes

 

Ngc_2207_spiral_galaxy_light_year_gravitation_galaxy_ic_2163_interactive_galaxies_starry_sky-1262103 (1)

While most galaxies in the universe hold only one supermassive black hole at their center, NGC 6240 contains two--and they're circling each other in the last steps before crashing together. New research reveals how gases ejected by those spiraling black holes, in combination with gases ejected by stars in the galaxy, may have begun to power down NGC 6240's production of new stars.  The team also shows how these "winds" have helped to create the galaxy's most tell-tale feature: a massive cloud of gas in the shape of a butterfly.

Continue reading ""The Star Killer" --Rare 'Butterfly' Galaxy with Two Supermassive Black Holes" »