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Today's Top Science Headline --The Music of Black Holes: "Vibrate at the Range of Human Hearing"

 

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Scientists collaborating internationally have developed a new way to learn about our universe through gravitational waves, which are ripples in space-time caused by the motion and vibration of celestial bodies. By analogy, gravitational waves are akin to the vibrations carried through the air as sound.

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The Alien Observatory --"We May Soon Discover Worlds That Host Lifeforms with Strange, Unearthly DNA and RNA"

 

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In 2016, NASA sequenced DNA in space for the first time, but alien life, we may soon discover, may be vastly different on other planets and moons, particularly as we expand our efforts to explore ocean worlds with our solar system and beyond. “Most strategies for life detection rely upon finding features known to be associated with Earth's life, such as particular classes of molecules,” the researchers wrote.

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NASA Set to Launch "Time-Machine" Mission to Probe Mars' Formation 4.5 Billion Years Ago

 

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"In some ways, InSight is like a scientific time machine that will bring back information about the earliest stages of Mars' formation 4.5 billion years ago,"  said JPL's Bruce Banerdt, principal investigator for InSight. "It will help us learn how rocky bodies form, including Earth, its moon, and even planets in other solar systems."

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Today's Top Discovery Headline --"Six Million Years Ago a Mega-Flood Created the Mediterranean Sea" (VIDEO)

 
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Six million years ago the Mediterranean Sea was a very different place than it is today. Plate tectonics had closed the Strait of Gibraltar separating modern-day Spain and Morocco, leaving the Mediterranean cut off from the Atlantic Ocean. The newly enclosed sea succumbed to evaporation, its water level falling by thousands of meters, turning it into a desertlike environment pockmarked with shallow pools as salty as today’s Dead Sea.

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Today's "Planet Earth Report" --"Our Declining Biological Age" -Is 70 the New 50?

 
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Yale and USC researchers found that American seniors are aging more slowly according to their "biological age." U.S. life expectancy has lengthened significantly for the last 60 years. But at least part of the gains in life expectancy may be due to a change in the rate of biological aging, rather than simply keeping very sick people alive for longer, according to a study by USC and Yale University researchers.

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"Alien Biology" TESS --NASA's New Habitable Exoplanet Hunter Opens a New 'Post-Kepler' Era

 
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“One of the biggest questions in exoplanet exploration is: If an astronomer finds a planet in a star’s habitable zone, will it be interesting from a biologist’s point of view?” said George Ricker, TESS principal investigator at the Massachusetts Institute of Technology (MIT) Kavli Institute for Astrophysics and Space Research, which is leading the mission. “We expect TESS will discover a number of planets whose atmospheric compositions, which hold potential clues to the presence of life, could be precisely measured by future observers.”

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Today's "Planet Earth Report" --Stunning Photo of China's Space Station, Tiangong-1 Hurtling Towards Earth: 'Impact Window Includes USA & Europe'

 
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In the next few days, a defunct, unoccupied Chinese space station, Tiangong-1 meaning 'heavenly palace' – shown in the vivid image below, is expected to reenter the atmosphere following the end of its operational life. Most of the craft should burn up. Owing to wide variations in atmospheric dynamics and the break-up process, among other factors, the date, time and geographic footprint of the reentry can only be forecast with large uncertainties. In the history of spaceflight, no casualties from falling space debris have ever been confirmed.

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Today's Top Science Headline: "Beguiling" --20-Year-Old Dark Matter Signal in Milky Way Still Detected

 
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A group of physicists at DAMA, a collaboration of Italian and Chinese researchers, says that it is still detecting the presence of dark matter — the mystery substance thought to make up 85% of matter in the Universe — 20 years after it saw the first hints of such a signal. Physicists searching for dark matter hope to measure the tiny amount of energy given off when particles in a ‘halo’ of dark matter thought to envelop the Milky Way interact with atoms of ordinary matter on Earth.

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Hubble Discovers Bizarre Galaxy --"Astonishing Gigantic 'See-Through' Blob With No Dark Matter"

 
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"I spent an hour just staring at this image," lead researcher Pieter van Dokkum of Yale University says as he recalls first seeing the Hubble image of NGC 1052-DF2. "This thing is astonishing a gigantic blob so sparse that you see the galaxies behind it. It is literally a see-through galaxy." that you see the galaxies behind it. It is literally a see-through galaxy."

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"Exploding the Habitable Zone" --Looking for Alien Life on Weird Planets

 
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"It used to be the thought that life could only exist in a narrow zone near a planet's star because you need to be there to maintain liquid water," said Rice University geophysicist Adrian Lenardic. "Then, we send Voyager out to a moon of Jupiter and, lo and behold, it shows strong indications of a subsurface ocean. That's because there is another energy source that did not get its proper due—tidal forces from the intense gravitational pull of Jupiter.

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