Šaltinis – EurekAlert.com – MESSENGER discovers an unusual impact basin on Mercury
Didelis krateris buvo atrastas MESSENGER erdvėlaivio darytoje nuotraukoje antrojo priartėjimo prie Merkurijaus metu 2008 metų spalį. Krateris yra daugiau nei 700 km skersmens. Jis pavadintas Rembranto (Rembrandt) vardu.
Dideli krateriai yra svarbūs paviršiaus elementai, atsirandantys susiduriant asteroidui su planeta. Rembranto krateris susidarė prieš 3,9 mln. [...]
Archive for the ‘Saulės sistema’ Category
MESSENGER atranda didelį kraterį Merkurijuje
Posted in Merkurijus, Misijos į kosmosą, tagged krateris, Merkurijus, messenger on 2009/05/03 | Leave a Comment »
Saulės vėjo poveikis jauniems asteroidams
Posted in Mažieji kūnai, Meteoroidai ir kometos, tagged asteroidai, saulės vėjas on 2009/05/03 | Leave a Comment »
Šaltinis – Astronomy.com – Solar wind tans young asteroids
Naujas žurnale “Nature” paskelbtas tyrimas atskleidė, kad asteroidų paviršiai senėja greičiau nei anksčiau manyta – mažiau nei per milioną metų. Tyrimas patvirtino, kad saulės vėjas yra galimiausia to priežastis. Rezultatai padės astronomams susieti asteroido išvaizdą su jo tikrąja istorija ir identifikuoti susidūrimų su kitais kūnais pasėkmes.
Seniai buvo [...]
Electrical Activity on Titan Confirmed (UT)
Posted in Misijos į kosmosą, Saturnas, tagged cassini, electrical activity, hiuigensas, huygens, moon, palydovas, saturn, titan, vims on 2008/08/02 | Leave a Comment »
Research has just been published proving Saturn’s moon is sparkling with electrical activity. Scientists are in general agreement that organic molecules, the precursors to life on Earth, are a consequence of lightning in the atmosphere. Now, using data from the Huygens probe that descended through Titan’s atmosphere in 2005 and continued transmitting for 90 minutes [...]
“We Have Water” on Mars, TEGA Test Confirms (UT)
Posted in Marsas on 2008/08/02 | Leave a Comment »
The Phoenix Mars lander finally was successful in delivering a fairly fresh sample of Martian soil to the Thermal and Evolved Gas Analyzer (TEGA) oven on Wednesday and a “bake and sniff” test identified water in the soil sample. “We have water,” said William Boynton of the University of Arizona, lead scientist for TEGA. “We’ve [...]
Liquid Lake on Titan Confirmed (UT)
Posted in Misijos į kosmosą, Saturnas, Saulės sistema, tagged cassini, etanas, ethane, ežeras, lake, titan, vims on 2008/08/02 | Leave a Comment »
NASA’s Cassini mission has detected liquid hydrocarbons on Saturn’s moon Titan, in a large, glassy lake near the moon’s south pole. Before the Cassini mission began, scientists thought Titan would have global oceans of methane, ethane and other light hydrocarbons. But after more than 40 close flybys of Titan by Cassini, data showed no global [...]
Newest Dwarf Planet (and Plutoid): Makemake (UT)
Posted in Mažieji kūnai, Saulės sistema, tagged dwarf planet, makemake, nykštukinė planeta, plutoid, spitzer on 2008/07/18 | Leave a Comment »
A Kuiper Belt Object discovered three years ago finally has a real name. It’s also officially been classified as a dwarf planet, and plutoid as well, by the International Astronomical Union (IAU). Formerly known as 2005 FY9, and also as 136472, (in addition to being unofficially called Easterbunny) the third largest known trans-Neptunian object is [...]
STEREO Maps Far Reaches of Solar System (UT)
Posted in Orbitiniai, Saulės sistema on 2008/07/06 | Leave a Comment »
NASA’s twin STEREO spacecraft have been studying the sun since their launch in 2006. But the mission made a surprising and unexpected discovery by detecting particles from the edge of the solar system, and for the first time, scientists have now been able to map the region where the hot solar wind meets up with [...]
MESSENGER Provides New Insights on Mercury (UT)
Posted in Merkurijus, Misijos į kosmosą, tagged caloris, fips, mercury, Merkurijus, messenger on 2008/07/06 | Leave a Comment »
Data from the MESSENGER spacecraft’s first flyby of Mercury in January of 2008 are now turning into science results. Several scientists discussed their findings at a press conference today highlighting the MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission, the first spacecraft to visit Mercury since NASA’s Mariner 10 made three flyby passes in 1974 [...]
Phoenix: Mars Soil Can Support Life (UT)
Posted in Marsas, Misijos į kosmosą, tagged dirva, gyvybė, life, mars, meca, phoenix, regolith, soil on 2008/06/29 | Leave a Comment »
Another groundbreaking discovery from Mars: Phoenix has analysed martian regolith containing minerals more commonly found in soil here on Earth, and the acidity is not a hindrance for life to thrive. These new and very exciting results come after preliminary analyses of a scoop of regolith by the landers “wet lab” known as the Microscopy, [...]
Dark Matter is Denser in the Solar System (UT)
Posted in Kosmologija, Saulės sistema, tagged dark matter, Saulės sistema, solar system, tamsioji materija on 2008/06/29 | Leave a Comment »
Dark matter was theorized to exist relatively recently, and we’ve come a long way in understanding what makes up a whopping 23% of our Universe. Our own galaxy is surrounded by a halo of dark matter that adds to its mass. A recent paper on the dark matter closer to home – right here in [...]
