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Today, scientists using data from NASA’s Kepler spacecraft announced they’d discovered an eighth planet orbiting a star 2,500 light years away. They’ve named the planet Kepler-90i after the star it orbits, Kepler-90, which is slightly hotter and more massive than our sun.


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The annual Geminid meteor shower has arrived. The shower will peak overnight Dec. 13-14 with rates around one per minute under good conditions.


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Heat generated by the gravitational pull of moons formed from massive collisions could extend the lifetimes of liquid water oceans beneath the surface of large icy worlds in our outer solar system, according to new NASA research. This greatly expands the number of locations where extraterrestrial life might be found, since liquid water is necessary to support known forms of life and astronomers estimate there are dozens of these worlds.


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The NASA's Hubble Space Telescope peers into the distant universe to reveal a galaxy cluster called Abell 2537. Galaxy clusters such as this one contain thousands of galaxies of all ages, shapes and sizes, together totaling a mass thousands of times greater than that of the Milky Way. These groupings of galaxies are colossal — they are the largest structures in the Universe to be held together by their own gravity.


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Billions of miles from Earth, at the edge of interstellar space, a long-dormant part of a far-flung spacecraft came to life this week.


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This weekend Earth will have front row seats for the first and last supermoon of 2017 in the next few days, known as the ‘full cold moon’. Appearing 14% larger and 30% brighter than the moon usually does, according to NASA, it will be well worth looking out for.


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Jovian clouds in striking shades of blue in this new view taken by NASA’s Juno spacecraft. The Juno spacecraft captured this image when the spacecraft was only 11,747 miles (18,906 kilometers) from the tops of Jupiter’s clouds — that’s roughly as far as the distance between New York City and Perth, Australia. The color-enhanced image, which captures a cloud system in Jupiter’s northern hemisphere, was taken on Oct. 24, 2017 at 10:24 a.m. PDT (1:24 p.m. EDT) when Juno was at a latitude of 57.57 degrees (nearly three-fifths of the way from Jupiter’s equator to its north pole) and performing its ninth close flyby of the gas giant planet.


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Astronauts have done over 200 spacewalks outside of the International Space Station, and the latest one offers some pretty stunning views of our planet. NASA astronaut Randy Bresnik posted a video he took with a GoPro camera on his latest spacewalk, which occurred last month. In the video, after latching himself safely to the outside of the space station, he takes a moment to look at the Earth. The round ball is dotted with clouds floating over oceans and land, suspended over pure darkness. It’s a mesmerizing view and reminder of “the beauty of our planet Earth,” as Bresnik says.


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Roscosmos has lost a meteorological satellite as well as 18 micro satellites owned by international partners after a Soyuz-2 rocket carrying the satellites failed to deploy them in the proper orbit following a launch on Tuesday.


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NASA TV is celebrating Black Hole Friday all day today


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NASA TV is celebrating Black Hole Friday today


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Astronomers have discovered some of the oldest stars in our Milky Way galaxy by determining their locations and velocities, according to a study led by scientists at Georgia State University.


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An asteroid that visited us from interstellar space is one of the most elongated cosmic objects known to science, a study has shown. Discovered on 19 October, the object's speed and trajectory strongly suggested it originated in a planetary system around another star. Astronomers have been scrambling to observe the unique space rock, known as 'Oumuamua, before it fades from view. Their results so far suggest it is at least 10 times longer than it is wide.


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Thales Alenia Space has signed a contract with the UK Space Agency to work on MicroCarb, a joint UK-French satellite mission which will measure sources and sinks of carbon, the principal greenhouse gas driving global warming. It is the first European mission intended to characterise greenhouse gas fluxes on Earth’s surface and gauge how much carbon is being absorbed by oceans and forests, the main sinks on the planet. The mission, scheduled to launch in 2020, will also contribute to international efforts to measure how much carbon gas is being emitted by natural processes and human activities. MicroCarb will enable the UK Space Agency and CNES to pave the way for a longer term operational system in response to the Paris COP21 Agreement.


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When a massive star, more than eight times the mass of our Sun, runs out of fuel to keep it shining, it ends its life in a dramatic explosion. Known as a supernova, the sequence of a rapid collapse followed by a violent explosion can leave the remnants, either a neutron star or a black hole, shining brightly for up to 100 days. Or so we thought. The longest supernova explosion ever observed has been detailed in a Nature paper published today, with a stellar explosion shining for more than 600 days. The discovery could lead us to completely rewrite our understanding of how stars evolve.


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Astronomers have spotted a “zombie star” that refused to die when massive explosions that are normally considered fatal rocked the heavenly body. The star, which lies half a billion light years away in the constellation of the Great Bear, has exploded multiple times since 1954, but may finally be on its way to the cosmic graveyard. It is the first time astronomers have seen the same star explode over and over. Until now stellar explosions, or supernovae, have been considered singular events, the dazzling death throes of stars that have burned up all their fuel.


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It’s that time of year again when NASA scientists compete to make the most creative, the most technologically challenging, and the most impressive pumpkin display of them all. This year, pumpkins spun, floated, and sailed like ships in the seventh annual (unofficial) pumpkin carving contest at NASA’s Jet Propulsion Laboratory.


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A new species of traversable wormhole has emerged, free of exotic material and full of potential for helping physicists resolve a baffling paradox about black holes. This paradox is the very problem that plagued the early draft of Carl Sagan's novel Contact and led Kip Thorne to contemplate traversable wormholes in the first place; namely, that things that fall into black holes seem to vanish without a trace. This total erasure of information breaks the rules of quantum mechanics, and it so puzzles experts that in recent years, some have argued that black hole interiors don’t really exist—that space and time strangely end at their horizons.


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Few space companies begin at home, yet that is exactly where it all began for AlbaOrbital. The ten-person Glasgow startup is leading the push to democratise space itself, developing and selling PocketQubes – small satellites which may be considered the perfect fit for a relatively small space company. But size can be misleading: Alba Orbital is pushing back the boundaries of space.


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The British astronaut Tim Peake hasn’t only been to space – he’s run a marathon and presented a Brit award in space, too. Ahead of his new book, Ask an Astronaut, The Guardian is joining him to answer your questions on Thursday 26 October at 1.30pm


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Gravitational waves produced by two neutron stars colliding have been detected for the first time. The detection, by the Ligo team, has confirmed long-held theories about what happens when two of these powerful objects come together. Neutron stars are the strangest stars in the Universe. Produced when the largest stars come of the end of their life, run out of fuel and collapse in on themselves, neutron stars are the smallest and most dense stars can get. Just one teaspoon of neutron star material is as heavy as the Great Pyramid of Giza.


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It is one of cosmology’s more perplexing problems: that up to 90% of the ordinary matter in the universe appears to have gone missing. Now astronomers have detected about half of this missing content for the first time, in a discovery that could resolve a long-standing paradox.


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Russian space agency Roscosmos announced Wednesday that it was collaborating on a NASA-led project to facilitate scientific missions in the moon's orbit and to its surface. Russia and the U.S. are also developing international standards for space exploration, Agence France-Presse reports.


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Astronomers say they have detected another set of gravitational waves — ripples in the fabric of space and time traveling throughout the Universe. It’s the fourth time this phenomenon has been measured by the scientists at LIGO, or the Laser Interferometer Gravitational-Wave Observatory. The same group made history by detecting the first wave signals early last year. While such detections seem to be routine now, this latest discovery is unique since it was also picked up by a separate non-LIGO observatory.




Guías Celestes
» mas

29. diciembre - 12:25

Neptune1


» de looby

29. diciembre - 11:53

Neptune1


» de looby

14. abril - 01:21

Astronomietag 2010


» de Jan Hattenbach

31. marzo - 08:53

Komet Hyakutake 1996


» de saltu

31. marzo - 08:45

Analemma


» de saltu

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