How old is the earth compared to the universe itself? | 5. The earth is the 3rd planet from the Sun. 6. The closest star to the Sun was thought to be Alpha Centauri but Alpha Centauri is a system of three stars Centauri A, Centauri B, and Proxima Centauri.
Jupiter is the largest planet in the solar system, the 5th from the Sun. It is not quite as bright as Venus when seen from Earth. Measured across, Jupiter is ten times the size of the Earth and one-tenth the size of the Sun. Like the Sun and Saturn, it is mostly hydrogen and helium. There may be a small core of rock and perhaps ice at the center.
Comet tails are made up of simple ionized molecules, including carbon monoxide and dioxide. By action of solar wind, molecules are blown away, forming a thin stream of hot gases continuously ejected from the solar corona. In case you do not know the meaning of a solar corona, it is the outermost atmosphere of the Sun. Amazingly, the thin streams of high gases move at a speed of approximately 400 kilometers (250 miles) per second (as cited in Yeomans 1991 p. 185). In addition, a comet frequently also displays smaller, curved tails composed of fine dust particles blown from the coma by the pressure of solar
Sunspots near the Sun's equator rotate at a faster rate than those near the solar poles. The following high resolution image shows a close-up view of a moderately large sunspot. The field of view covers about 60000 km horizontally, and 38000 km vertically. The penumbral diameter of this sunspot is about 16500 km; the Earth, with an equatorial radius of 6378 km, would cover up the umbra but not the penumbra. Sunspots can be quite small ([IMAGE]1500 km diameter), and reach sizes up to 50000 km.
However, if the planet's carbon cycle has ceased due to lack of oceans and plate tectonics, Kepler-22b may turn out to be a searing, sterile super-Venus. Climate and habitability The average distance from Kepler-22b to its host star Kepler-22 is about 15% less than the distance from Earth to the Sun but the luminosity (light output) of Kepler-22 is about 25% less than that of the Sun. This combination of a shorter average distance from the star and a lower stellar luminosity are consistent with a moderate surface temperature at that distance if we assume that the surface is not subject to extreme greenhouse heating. If the planet is found to move in a highly elliptical orbit, its surface temperature will vary from a higher temperature when close to Kepler-22 to lower when further away. If the orbit is indeed highly elliptical, then the temperature variance range will be extreme.
In another big announcement on Monday, using telescopes at the Hawaii-based Keck Observatory and the McDonald Observatory in Texas, astronomers at UC-Berkeley announced the discovery of the largest black holes to date -- two monsters with masses equivalent to 10 billion suns that are capable of consuming anything, even light, within a region five times the size of our solar system. The $600 million Kepler spacecraft peers at about 150,000 stars in the constellations Cygnus and Lyra, trying to detect any change in star brightness that suggests a passing planet. Three dips, or dimming, must be seen for confirmation. The Kepler science team uses ground-based telescopes and the Spitzer Space Telescope to review observations on planet candidates that the spacecraft finds, validating their
The most logical answer is A. When the earth was just starting to form a big astoride hit earth and a large amount of material flew off to form the moon. 3. Sunlight is created from_______ a. Sun light Bulbs b. Thomas Edison c. Yo Moma d. Energy from Nuclear Fusion i. D. Sunlight is the energy that is released when a nuclear reaction causes hydrogen to form in to helium 4.