Oxygen is an essential necessity of life on land. The same applies for almost all organisms in the ocean. However, the oxygen supply in the oceans is threatened by global warming in two ways: Warmer surface waters take up less oxygen than colder waters. In addition, warmer water stabilizes the stratification of the ocean, weakening the circulation connecting the surface with the deep ocean and less oxygen is transported into the deep sea. The first global evaluation of millions of oxygen measurements seems to confirm this trend.
"Are We Alone" --In a Newly Found 1939 Essay Winston Churchill "Outlines Possibility of Alien Life and Exoplanet Habitable Zones"
A newly unearthed essay, "Are We Alone in the Universe," by Winston Churchill reveals he was open to the possibility of life on other planets. In 1939, a year following the radio broadcast of Ortson Welles' War of the Worlds with World War 11 breaking out, Churchill discussed the concept of habitable zones more than 50 years before the discovery of exoplanets. Churchill's thinking mirrors many modern arguments in astrobiology and builds on the Copernican Principle - the idea that human life on Earth shouldn't be unique given the vastness of the Universe.
Mysteries of Earth's Magnetic Field Revealed in Ancient Judean Jars --"Fluctuated Violently in Past Without Ending Life on Our Planet"
The behavior of the Earth's magnetic field that emanates from the planet's deep interior but extends far out into space and has existed for more than three and a half billion years but fluctuates daily, is one of the most enigmatic topics in physics. But now, clues can be found by detecting its intangible and mostly invisible behavior in the past, in geology and archaeological artifacts," says Dr. Erez Ben-Yosef of Tel Aviv University.
Space X Founder Elon Musk --"We'll Evolve as a Merger of Biological and Digital Intelligence" (VIDEO)
Human beings are in danger of being eclipsed by artificial intelligence and need to evolve the ability to communicate directly with machines or risk irrelevance, says Elon Musk who believes the human mind needs to evolve to be able to access information quickly and tap into artificial intelligence. “Over time I think we will probably see a closer merger of biological intelligence and digital intelligence," Musk told an audience at the World Government Summit in Dubai, where he also launched Tesla in the United Arab Emirates. "It's mostly about the bandwidth, the speed of the connection between your brain and the digital version of yourself, particularly output."
A team of astronomers in Garching, Germany, discovered a comet-like object in a distant galaxy 170 light-years from Earth that is similar in composition to the famed Halley’s comet — however, this one is about 100,000 times bigger. New Hubble Space Telescope findings are evidence for a belt of comet-like bodies orbiting the white dwarf, similar to our solar system’s Kuiper Belt.
An international team of astronomers released the largest-ever compilation of exoplanet-detecting observations made using a technique called the radial velocity method. They demonstrated how these observations can be used to hunt for planets by detecting more than 100 potential exoplanets. One of these probable planets is around a star called GJ 411, also known as Lalande 21185, the fourth-closest star to our own Sun and is only about 40 percent the mass of the Sun.
"We thought that planets cannot really excite their stars, but we find that this one does," says Julien de Wit, a postdoc in MIT's Department of Earth, Atmospheric and Planetary Sciences. "There is a physical link between the two, but at this stage, we actually can't explain it. So these are mysterious pulsations induced by the star's companion."
"Hubble's Heroic Future" --Trump White House Mulls Sending a Manned Spacecraft to Upgrade the Space Telescope (VIDEO)
President Trump’s advisers are considering an industry proposal to send a manned spacecraft to link up with NASA’s pioneering orbiting telescope — comparable to five earlier repair missions by the now-retired space shuttle fleet stretching back to 1993. The mission meets the Trump team’s guiding principle on dramatic but relatively inexpensive space projects that can be easily understood by average Americans.
“Fifteen years ago, when you talked about the multiverse, the attitude of many physicists was just ridicule,” says Alexander Vilenkin, professor of physics and director of the Institute of Cosmology at Tufts University. “But there has been a great change in attitude.” The concept of a multiverse is controversial and, at times, contentious. Today, many scientists are understandably skeptical. A few even reject the notion. But for others like Vilenkin, the arguments for the multiverse are so compelling, they demand science take it seriously.