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You searched for "Sun"
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Showing 21 - 30 of 35
Showing 21 - 30 of 35
Proton Fusion
This is the process which fuels the Sun and other stars which have core temperatures less than 15 million Kelvin. A reaction cycle yields about 15 MeV of energy.
Hits: 1924
Supernova
A supernova is an explosion of a massive supergiant star. It may shine with the brightness of 10 billion suns! The total energy output may be 10^44 joules, as much as the total output of the sun ...
Hits: 1272
Astronomical Unit
The average distance between the Earth and the Sun is a natural distance unit and is called an Astronomical Unit (AU).
Hits: 761
Parallax
A nearby star's apparent movement against the background of more distant stars as the Earth revolves around the Sun is referred to as parallax.
Hits: 1286
More than sunshine
Feature article explain all the different activities of the sun from the solar wind to coronal mass ejections
Hits: 1254
Interesting facts about the Sun
Interesting facts about the Sun from the Science, Technology and Facilities Council (STFC)
Hits: 610
Sun Earth Plan
A detailed website about the Sun and the Earth for International Heliophysical Year in 2007
Hits: 181
A taste of Solar Maximum
Read how NASA is watching the space weather from the sun as the solar maximum approaches.
Hits: 260
Showing 21 - 30 of 35