搜索结果: 1-15 共查到“天文学 the moon”相关记录19条 . 查询时间(0.046 秒)
When NASA’s 990-pound Dragonfly rotorcraft reaches the Selk crater region – the mission’s target touchdown spot – on Saturn’s moon Titan in 2034, Cornell’s Léa Bonnefoy '15 will have helped to make it...
Swirling around the planet’s equator, the rings of Saturn are a dead giveaway that the planet is spinning at a tilt. The belted giant rotates at a 26.7-degree angle relative to the plane in which it o...
Image Release:New Radar Map Reveals The Moon’s Hidden Geology（图）
new radar map moon hidden geology
2017/9/5
As the public prepares for the upcoming eclipse, astronomers have released a striking new radar view of the Moon. Researchers from the Smithsonian’s National Air and Space Museum are using radio teles...
First results from long-term,hi-res tracking of eruptions on Jupiter's moon Io
long-term hi-res tracking eruptions Jupiter moon Io
2016/11/4
Jupiter’s moon Io continues to be the most volcanically active body in the solar system, as documented by the longest series of frequent, high-resolution observations of the moon’s thermal emission ev...
Strange events have long been linked to nights of a full moon, though careful scrutiny dispels any association. So, when signals bounced off the lunar surface returned surprisingly faint echoes on ful...
Observation of the Cosmic Ray Moon shadowing effect with ARGO-YBJ
Observation Cosmic Ray Moon shadowing effect ARGO-YBJ
2011/10/19
Cosmic rays are hampered by the Moon and a deficit in its direction is expected (the so-called \emph{Moon shadow}). The Moon shadow is an important tool to determine the performance of an air shower a...
Observation of the Cosmic Ray Moon shadowing effect with the ARGO-YBJ experiment
Extensive Air Showers, Cosmic Rays, Moon shadow, Geomagnetic fi eld, ARGO-YBJ
2011/10/10
Cosmic rays are hampered by the Moon and a deficit in its direction is expected (the so-called \emph{Moon shadow}). The Moon shadow is an important tool to determine the performance of an air shower a...
The impact of the Kasatochi eruption on the Moon's illumination during the August 2008 lunar eclipse
Kasatochi Moon's illumination lunar eclipse
2011/9/14
The Moon抯 changeable aspect during a lunar eclipse is largely attributableto variations in the refracted unscattered sunlight absorbed by the terres trial atmosphere that occur as the satellite crosse...
How to Weigh a Star Using a Moon
Earth and Planetary Astrophysics (astro-ph.EP) Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/29
We show that for a transiting exoplanet accompanied by a moon which also transits, the absolute masses and radii of the star, planet and moon are determinable. For a planet-star system, it is well kno...
Rotation of the Solar System planets and the origin of the Moon in the context of the tidal downsizing hypothesis
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/27
It has been proposed recently that the first step in the formation of both rocky and gas giant planets is dust sedimentation into a solid core inside a gas clump (giant planet embryo). The clumps are ...
Ever since the solar system formed roughly five billion years ago, a steady barrage of asteroids, comets and other rocky material has pummeled the surfaces of planetary bodies. Earth’s surface shows l...
Freshly discovered scars on the face of the Moon reveal that this rocky satellite is shrinking at a relatively rapid pace, say researchers based in Germany and the US. Images collected by NASA's Lunar...
Moon Rock Gains Traveling Companion for Historic Return to Space
Moon Rock Traveling Companion Historic Return Space
2010/1/11
A moon rock collected during the historic Apollo 11 mission more than 40 years ago will be heading back to space and a new home aboard the International Space Station, sharing quarters with a piece of...
NASA Partners with Saudi Arabia on Moon and Asteroid Research
NASA Partners Saudi Arabia Moon and Asteroid Research
2009/12/18
NASA and the Kingdom of Saudi Arabia's King Abdulaziz City for Science and Technology (KACST) have signed a joint statement that allows for collaboration in lunar and asteroid science research. The pa...
Rocket fuel research celebrated on anniversary of moon landing
rocket fuel moon landing Apollo
2009/7/20
When the lunar module took off from the surface of the moon 40 years ago Neil Armstrong and Buzz Aldrin were relying on 4 cubic tonnes of N2O4 — one of the most important rocket propellants ever devel...