搜索结果: 46-60 共查到“天文学 Earth”相关记录82条 . 查询时间(0.333 秒)
The Laboratory Complex for the Calibration of Photometers Using the Optical Method for Determination of the Water Vapor Content in the Earth Atmosphere
Instrumentation and Methods for Astrophysics (astro-ph.IM)
2011/1/7
We describe the laboratory complex for the calibration of photometers that are used in weather service to measure the water vapor content in the Earth atmosphere.
(Ultra-)High Energy Muon Neutrino Propagation through the Earth and Induced Muon Energy Distribution near the One Cubic Kilometer Detector
High Energy Astrophysical Phenomena (astro-ph.HE) High Energy Physics - Experiment (hep-ex)
2010/12/28
We calculate high and (ultra-)high energy upward-going muon neutrino propagation through the Earth and the induced muon energy distribution near the one cubic kilometer detector using the Monte Carlo ...
Propagation of an Earth-directed coronal mass ejection in three dimensions
Solar and Stellar Astrophysics (astro-ph.SR) Earth and Planetary Astrophysics (astro-ph.EP) Plasma Physics (physics.plasm-ph) Space Physics (physics.space-ph)
2010/12/23
Solar coronal mass ejections (CMEs) are the most significant drivers of adverse space weather at Earth, but the physics governing their propagation through the heliosphere is not well understood. Whil...
Thermal evolution and interior models of the transiting super-Earth GJ 1214b
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/23
The planet GJ 1214b is the second known super-Earth with a measured mass and radius. Orbiting a quiet M-star, it receives considerably less mass-loss driving X-ray and UV radiation than CoRoT-7b, so t...
Transient Perturbations and their Effects in the Heliosphere, the Geomagnetosphere, and the Earth’s Atmosphere: Space Weather Perspective
Space weather geomagnetic storm cosmic ray Forbush decrease interplanetary shock coronal mass ejection
2010/9/16
We discuss the effects of certain dynamic features of space environment in the heliosphere, the geo-magnetosphere, and the earth’s atmosphere. In particular, transient perturbations in solar wind plas...
Long term time variability of cosmic rays and possible relevance to the development of life on Earth
cosmic rays lightning evolution
2010/3/9
An analysis is made of the manner in which the cosmic ray intensity at Earth has varied over its existence and its possible relevance to both the origin and the evolution of life. Much of the analysis...
Researchers in the US have used a ground-based telescope to detect organic compounds in the atmosphere of an exoplanet – that is, a planet orbiting a star other than our Sun. The result, the researche...
Planet 51 Star Brings NASA's Message of Exploration Down to Earth
Planet 51 Star NASA's Message Exploration Earth
2009/11/24
Actor Dwayne Johnson, usually known for his action and comedic film roles, takes to the stars as an astronaut in a new animated feature that brings important messages about the importance of space exp...
Chemical signature could help locate Earth-like planets（图）
Chemical signature Earth-like planets
2009/10/21
New insights into the Sun's chemical composition may provide a new way to search for Earth-like planets orbiting distant stars – claims an international team of astrophysicists.Astronomers have alread...
NASA Research Reveals Major Insight Into Evolution Of Life On Earth
Major Insight Earth Evolution Of Life
2009/8/20
Humans might not be walking on Earth today if not for the ancient fusing of two microscopic, single-celled organisms called prokaryotes, NASA-funded research has found.
The Rotation of the Earth：new models and concepts。
Astroengineering, or how to save the Earth in only one billion years
Astroengineering the Earth
2009/6/16
Astroengineering, or how to save the Earth in only one billion years。
Magnetic turbulence in and around the Earth's magnetosphere
Magnetic turbulence Earth's magnetosphere
2009/5/27
Magnetic turbulence is found in most space plasmas, including the geospace environment. Recent spacecraft observations of magnetic turbulence in the ion foreshock, in the magnetosheath, in the polar ...
NASA Study Shows Asteroids May Have Accelerated Life on Earth
NASA Asteroids Accelerated Life Earth
2009/5/21
The study focused on a particularly cataclysmic occurrence known as the Late Heavy Bombardment, or LHB. This event occurred approximately 3.9 billion years ago and lasted 20 to 200 million years. In a...
The Concordia Station on the Antarctic Plateau：The Best Site on Earth for the 21st Century Astronomers
astronomical photometry infrared astronomy sub-mm astronomy Antarctic astronomy
2009/5/12
On the Antarctic plateau, a joint project of French and Italian
polar programmes is nearing completion: the Concordia station will be open
for winter-over operation in 2005. The high altitude and hi...