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Nouvelles mesures anti-Covid possibles, conférence de presse d'Alain Berset à 14h30 rts.ch - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from rts.ch Daily Mail and Mail on Sunday newspapers.
How hot is the sun? I have it on very good authority that it s more than 20 degrees, for sure. The Sun is a ball of nuclear plasma so large its own weight keeps it from exploding. Very cool, but also quite hot. However, the Sun has a complicated interior structure, and surprisingly large temperature variations, both on and under its surface. Today, we’re going to look at why this is, and how we know. A ‘Pumpkin Sun’ composite image created by NASA in 2014. Colored gold-yellow, with active regions being brighter for “a particularly Halloween-like appearance”. Image credits NASA. A lot of the things happening on Earth are, ultimately, fueled by energy from the Sun. We see that energy as sunshine, feel it hot on our skin on a clear day. It drives winds, and it powers rain cycles. Almost all life on Earth is fed by plants capturing sunlight. It’s very fortunate for us, then, that the Sun produces a monumental amount of energy. Just a fraction of its output ....
Nbc s kerry sanders. meanwhile, hurricane joaquin continues to churn near the bahamas. but to the relief of many it looks like it s moving out to sea. msnbc meteorologist bill karins is monitoring all of the extreme weather and joins us from our weather center. extreme sums it up. we sill haven t seen the pictures of the island hit the hardest in the bahamas. that will come out later today. they re finally seeing the sun. that s joaquin, not a problem. bermuda could get brushed by it. the big problem is charleston, south carolina, now moving up the interstate towards columbia. it s literally a hose spraying on the same areas with torrential rains. that s why we could see the historic 128 to 20 inches of rain. we ve already had 8 inches in charleston and this is just the beginning. the other thing we re dealing with is on the wave front. we are watching big waves continuing. we get this fetch that will be ....