Recent Entries

Milky-Way Worlds May Harbor Lifeforms With Alien DNA

Alien World

 

During a keynote speech at a NASA conference a decade ago on the search for extraterrestrial life an attendee shouted out: “We have no idea what’s out there!” One of NASA’s goals is to search for life on other planets like Mars, where there was once flowing water and a thick atmosphere, or moons of the outer solar system like Europa and Enceladus, where vast water oceans churn under thick layers of ice. But what if life on those worlds doesn’t use our DNA? How could we recognize it? A 2019 DNA breakthrough may be the key to answering these questions and many more.

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‘Faint Signal of First Atoms to Beyond the Observable Universe’ –Last Week’s Top 5 Space & Science Headlines

 

ESO ALMA Array

 

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Fast Facts About Young Stars of the Universe

Young Stars of star cluster NGC 3572

 

Determining the age of a star can be one of the trickiest measurements an astronomer can make.  Stars don’t obviate their age like humans do — with wrinkles around the eyes, grey hair, or brittle bones.  Instead stars give hints at their age through things like their motion, rotation rate, chemistry, and placement in the Galaxy. Finding “extrema” on the age spectrum for stars — the oldest and youngest — is much easier than trying to find middle aged objects like our Sun.   In this article, we reveal five fast facts about the youngest stars in the Galaxy.

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Epoch of the Cosmic Dawn –‘Faint Signal of First Atoms Detected’

MWA

 

“There are precious few fossil relics of the early Universe,” Brian Keating, Chancellor’s Distinguished Professor of Physics at UC San Diego, and author of Think Like a Nobel Prize Winner,” told The Daily Galaxy. “Just after the Big Bang,” Keating explained, “came the epoch of Big Bang nucleosynthesis, ending a few minutes later. The Cosmic Microwave Background, the universe’s oldest light, came about 380,000 years later. Then the great cosmic darkness began. That darkness had to end, or else we would not be here asking what caused the Universe to be so dim.

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Galactic Winds -‘Reveal Missing Matter of the Universe’

 

Galactic Winds

 

One of the major problems in understanding the formation of galaxies is that approximately 80% of the baryons that make up the normal matter of galaxies is missing, expelled over eons from galaxies into inter-galactic space by the galactic winds created by stellar explosions.

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‘The Empty-Sky Gamma-Ray Mystery’ -Evidence of Dark Matter?

 

Milky Way Gamma-Ray Sky

 

“Something like the diffuse glow of gamma ray background that permeates our Milky Way Galaxy could conceivably be evidence for dark matter,” researcher Mark Krumholz, a theoretical and computational astrophysicist at  Australian National University, told The Daily Galaxy.

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Silicon Valley’s Wild Bet on Living Forever to Continents of Earth’s Underworld –Planet Earth Report

Earth from Space

 

“Planet Earth Report” provides descriptive links to headline news by leading science journalists about the extraordinary discoveries, technology, people, and events changing our knowledge of Planet Earth and the future of the human species.

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‘Terra Incognita’ -What Lies Beyond the Observable Universe?

Hubble Ultra Deep Field

 

It’s possible that the universe isn’t uniform past what we can see, and conditions are wildly different from place to place, says Caltech astrophysicist Sean Carroll. “That possibility is the cosmological multiverse. We don’t know if there is a multiverse in this sense, but since we can’t actually see one way or another, it’s wise to keep an open mind.”

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