eurekalert

Syndicate content EurekAlert! - Space and Planetary Science
The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
Updated: 32 weeks 7 hours ago

NASA catches Tropical Cyclone Ava's landfall on Madagascar's coast

Fri, 2018-01-05 06:00
(NASA/Goddard Space Flight Center) NASA-NOAA's Suomi NPP satellite passed over Tropical Cyclone Ava as it made landfall along the coast of northeastern Madagascar.
Categories: space news

Special star is a Rosetta Stone for understanding the sun's variability and climate effect

Fri, 2018-01-05 06:00
(Aarhus University) A large international team of scientists has found a star that can help shed light on the physics underlying the solar dynamo. The team has combined observations from the Kepler spacecraft with ground-based observations as far back as 1978, thereby reconstructing a 7.4-year cycle in this star. The star is almost identical to the Sun, except for the chemical composition. That makes it a Rosetta Stone for the study of stellar dynamos.
Categories: space news

Space fever: Weightlessness increases astronauts' body temperature

Fri, 2018-01-05 06:00
(Charité - Universitätsmedizin Berlin) Astronauts float weightlessly through space, and the condition of weightlessness is something many would love to experience. However, in addition to producing both physical and psychological stress, a trip into space affects our core body temperature. Researchers from Charité - Universitätsmedizin Berlin have observed that astronauts run hot when exposed to weightlessness, and that, even at rest, their body temperature is approximately 1°C above the normal value of 37°C (98.6°F).
Categories: space news

NASA finds a stronger Ava now tracking along Madagascar's coast

Thu, 2018-01-04 06:00
(NASA/Goddard Space Flight Center) NASA satellites provided data that showed a more well-formed storm and strong thunderstorms with heavy rainfall potential over central Madagascar and off-shore.
Categories: space news

NASA looks at rainfall intensity in Tropical Depression Bolaven

Thu, 2018-01-04 06:00
(NASA/Goddard Space Flight Center) The Global Precipitation Measurement mission or GPM core satellite gathered data on rainfall rates occurring in Tropical Depression Bolaven as it moved toward Vietnam. Bolaven's final warning was issued early today, Jan. 4.
Categories: space news

ICON & GOLD teaming up to explore Earth's interface to space

Thu, 2018-01-04 06:00
(NASA/Goddard Space Flight Center) Two new NASA missions are teaming up to explore where Earth's atmosphere interfaces with space -- a little-understood area that's close to home but historically hard to observe.
Categories: space news

NASA's Webb Telescope to investigate mysterious brown dwarfs

Thu, 2018-01-04 06:00
(NASA/Goddard Space Flight Center) Twinkle, twinkle, little star, how I wonder what you are. Astronomers are hopeful that the powerful infrared capability of NASA's James Webb Space Telescope will resolve a puzzle as fundamental as stargazing itself -- what IS that dim light in the sky? Brown dwarfs muddy a clear distinction between stars and planets, throwing established understanding of those bodies, and theories of their formation, into question.
Categories: space news

Weighing massive stars in nearby galaxy reveals excess of heavyweights

Thu, 2018-01-04 06:00
(University of Oxford) An international team of astronomers has revealed an 'astonishing' overabundance of massive stars in a neighboring galaxy. The discovery, made in the gigantic star-forming region 30 Doradus in the Large Magellanic Cloud galaxy, has 'far-reaching' consequences for our understanding of how stars transformed the pristine Universe into the one we live in today.
Categories: space news

Big stars are more abundant than thought

Thu, 2018-01-04 06:00
(American Association for the Advancement of Science) Observations of a nearby star-forming region reveal that large stars are more prevalent than models have predicted.
Categories: space news

NASA's Magnetospheric Multiscale Mission locates elusive electron act

Wed, 2018-01-03 06:00
(NASA/Goddard Space Flight Center) New NASA research helps improve our understanding of how electrons move through the complex region around Earth -- information that will help untangle how such particle acrobatics affect the planet.
Categories: space news

NASA-NOAA's Suomi NPP Satellite sees Tropical Storm Ava near Madagascar

Wed, 2018-01-03 06:00
(NASA/Goddard Space Flight Center) NASA-NOAA's Suomi NPP passed over newly formed Tropical Storm Ava and analyzed the storm in infrared light. Ava, the third tropical cyclone of the Southern Indian Ocean season formed off the coast of northeastern Madagascar on Jan. 3.
Categories: space news

NASA's Aqua satellite sees Tropical Depression Bolaven battling wind shear

Wed, 2018-01-03 06:00
(NASA/Goddard Space Flight Center) NASA's Aqua satellite passed over the South China Sea and obtained a visible light image of the first depression of the Northwestern Pacific Ocean basin's 2018 tropical cyclone season. Vertical wind shear can be deadly to tropical cyclones and satellite data showed Tropical Depression Bolaven, formerly known as 01W, was being adversely affected by it.
Categories: space news

Alien megastructure not the cause of dimming of the 'most mysterious star in the universe'

Wed, 2018-01-03 06:00
(Penn State) Scientists are one step closer to solving the mystery behind the 'most mysterious star in the universe.'
Categories: space news

New data debunks alien megastructure theory on the 'most mysterious star in the universe'

Wed, 2018-01-03 06:00
(Louisiana State University) A team of more than 100 researchers, led by LSU Department of Physics & Astronomy Assistant Professor Tabetha Boyajian, is one step closer to solving the mystery behind the'most mysterious star in the universe.' KIC 8462852, or 'Tabby's Star,' nicknamed after Boyajian, is otherwise an average star. It is about 50 percent bigger and 1,000 degrees hotter than the Sun. It is more than 1,000 light years away. However, it has been inexplicably dimming and brightening sporadically like no other.
Categories: space news

NASA sees Tropical Depression 01W come together

Tue, 2018-01-02 06:00
(NASA/Goddard Space Flight Center) Tropical Depression 1W formed just west of the Philippines in the Sulu Sea as NASA's Terra satellite passed overhead early on Jan. 2, 2018.
Categories: space news

Sensor to monitor orbital debris outside space station

Tue, 2018-01-02 06:00
(NASA/Johnson Space Center) The Space Debris Sensor (SDS) will monitor the small debris environment around the space station for two to three years, recording instances of debris between the sizes of .05mm to.5mm. Objects larger than 3 mm are monitored from the ground. It will launch to station in the trunk of a SpaceX Dragon during a resupply mission no earlier than Dec. 12.
Categories: space news

Supermassive black holes control star formation in large galaxies

Mon, 2018-01-01 06:00
(University of California - Santa Cruz) Young galaxies blaze with bright new stars forming at a rapid rate, but star formation eventually shuts down as a galaxy evolves. A new study, published Jan. 1, 2018, in Nature, shows that the mass of the black hole in the center of the galaxy determines how soon this 'quenching' of star formation occurs.
Categories: space news

NASA finds heavy rain in new Tropical Cyclone Hilda

Thu, 2017-12-28 06:00
(NASA/Goddard Space Flight Center) As Tropical Cyclone Hilda was coming together in the Southern Indian Ocean the GPM satellite analyzed its rainfall from space.
Categories: space news

Genes in Space-3 successfully identifies unknown microbes in space

Thu, 2017-12-28 06:00
(NASA/Johnson Space Center) Being able to identify microbes in real time aboard the International Space Station, without having to send them back to Earth for identification first, would be revolutionary for the world of microbiology and space exploration. The Genes in Space-3 team turned that possibility into a reality this year, when it completed the first-ever sample-to-sequence process entirely aboard the space station.
Categories: space news

2017 top science news release breaks EurekAlert!'s all-time record

Tue, 2017-12-26 06:00
(EurekAlert!) The most popular news release on EurekAlert! In 2017 is also the most-visited in the science-news service's 21-year history.
Categories: space news