Posts Tagged Astronomy

The Most Interesting Science News Articles of the Week…

This recap takes us up into space, deep down into the ocean, and way back in history… Read it here at Live Science: https://www.livescience.com/50718-weekend-reading.html Advertisements

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Atmosphere detected around an Earth-like planet — ScienceDaily… 

Science update from sciencedaily.com: https://www.sciencedaily.com/releases/2017/04/170406152402.htm

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Exoplanet discovery: seven Earth-sized planets found orbiting nearby star… 

Astronomy news from theguardian.com: Exoplanet discovery: seven Earth-sized planets found orbiting nearby star  

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Antarctic site promises to open a new window on the cosmos… 

From ScienceDaily.Com: Antarctic site promises to open a new window on the cosmos Summary:  Antarctica might be one of the most inhospitable regions on the planet, but it is a mecca for astronomers. Its cold, dry air enables observations that can’t be done elsewhere on Earth.

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Will Earth still exist 5 billion years from now?… 

Read about it at ScienceDaily.Com: Will Earth still exist 5 billion years from now?

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Record-breaking faint satellite galaxy of the Milky Way discovered… 

Summary:  Astronomers have found an extremely faint dwarf satellite galaxy of the Milky Way. The satellite, named Virgo I, lies in the direction of the constellation Virgo. At the absolute magnitude of -0.8 in the optical waveband, it may well be the faintest satellite galaxy yet found. Its discovery suggests the presence of a large […]

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Giant ‘Hole’ in Sun Is 50 Earths Wide…

The sun has sprung a leak: A hole in the topmost layer of the sun and its magnetic field, the size of 50 Earths, is letting loose an ultrafast solar wind that has kicked off several nights of auroras down on Earth…  (image from msn.com) Read the rest of the article here: Giant ‘Hole’ in […]

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What is a Black Hole?…

(from nasa.gov)…        A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can’t see black holes. They are […]

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Pluto Is Unexpectedly Large – New Horizons Mission…

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Pluto photographs…

Nasa spacecraft makes history as the first spacecraft to reach distant dwarf planet, the last unexplored world in solar system… Read the article here at theguardian.com :Pluto photographs thrill Nasa scientists after nine-year mission  Related articles: New Horizons: ten facts about Nasa’s astonishing Pluto mission and beyond – Pluto New Horizons mission: what happens next? […]

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Observations of one billion years after Big Bang: New stage in galactic lifecycle discovered…

Introduction from ScienceDaily.com: On its own, dust seems fairly unremarkable. However, by observing the clouds of gas and dust within a galaxy, astronomers can determine important information about the history of star formation and the evolution of galaxies. Now thanks to the unprecedented sensitivity of the telescope at the Atacama Large Millimeter Array (ALMA) in […]

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Comet Wild 2: A window into the birth of the solar system?…

Source: ScienceDaily.com: Scientists have investigated the oxygen isotope and mineral composition of the comet dust returned from Wild 2. The team discovered an unexpected combination of material that has deepened the mystery of Wild 2’s past…. Our solar system, and other planetary systems, started as a disk of microscopic dust, gas and ice around the young […]

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Millimeter-sized stones formed our planet…

Summary:  Researchers can now explain how asteroids are formed. Our own planet also has its origins in the same process, a cosmic ocean of millimeter-sized particles that orbited the young sun, according to new research… Source: ScienceDaily.com  Read more here: Millimeter-sized stones formed our planet…  (image from ScienceDaily.com)

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Ancient Cosmic Smack-Up May Have Made Earth’s Molten Core…

from news.nationalgeographic.com… Geologists can’t observe Earth’s core directly, but they know from the way seismic waves travel through the planet that the core is made mostly of molten iron and nickel. Those hot substances power the planet’s magnetic field as well as the phenomenon known as plate tectonics. But why the core remains molten some 4.5 […]

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What is Dark Matter and Dark Energy?…

According to “science.nasa.gov”: In the early 1990s, one thing was fairly certain about the expansion of the Universe. It might have enough energy density to stop its expansion and recollapse, it might have so little energy density that it would never stop expanding, but gravity was certain to slow the expansion as time went on… […]

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As stars form, magnetic fields influence regions big and small (sciencedaily.com)…

Summary: Stars form when gravity pulls together material within giant clouds of gas and dust. But gravity isn’t the only force at work. Both turbulence and magnetic fields battle gravity, either by stirring things up or by channeling and restricting gas flows, respectively. New research focusing on magnetic fields shows that they influence star formation […]

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Abrupt rise in greenhouse gases at end of last ice age may be because of permafrost…

News from ENN.com… the full article can be read here: Abrupt rise in greenhouse gases… One of the most abrupt rises in the carbon dioxide concentration in the atmosphere at the end of the last ice age took place about 14,600 years ago. Ice core data show that the CO2 concentration at that time increased […]

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Extrasolar Planets or exoplanets…

Extrasolar planet, also called exoplanet,  any planetary body that is outside the solar system and that usually orbits a star other than the Sun. The first extrasolar planets were discovered in 1992. More than 1,700 are known, and more than 3,000 await further confirmation. A full entry on this can be found at Britannica.com: Extrasolar planet… […]

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