An
international team of astronomers has fixed a star in the work of devouring one
of its planets. BD+48 740, a red giant they pragmatic using the 9.2-meter
Hobby-Eberly Telescope at the McDonald Observatory in Texas, appears to have
the gas of a scorched planet in its atmosphere. This is reliable with a
rocky world, recently destroyed.
The great researchers who concentrate
in stellar evolution have lengthy known that the inner planets are in
danger. The trouble starts in the isolated future when the sun's core
runs out of hydrogen fuel for nuclear fusion. To keep the fires flaming, the
sun will begin to fuse hydrogen external the core, in a layer closer to the
stellar surface. This will turn the sun into a red oversize, at least 200 times
wider than it is today. Mercury, Venus, Earth and possibly even Mars might be
engulfed.
The fate of Earth is not a confidence,
however. Some researchers believe that Earth's orbit might spiral outward,
keeping the planet at a safe space from the future inferno. This could happen
if solar winds carry a path a major fraction of the sun's mass in the years most
important up to the red giant phase. On the other hand, the sun might get
bigger so fast that our planet has no chance to escape. Earth would get trapped
in the sun's rapidly advancing atmosphere and spiral innermost to oblivion.
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