Rho-Ophiuchi: A molecular cloud about
500 light years from Earth.
Caption: This time-lapse sequence of
Chandra images taken over a 27 hour period shows the flaring
activity of protostars – stars in their "neonatal stage"
that are surrounded by dust and gas. Because these stars are
hidden from the view of other types of telescopes, X-ray
observations provide astronomers with a look at some of the
youngest stars in the universe. Chandra was able to separate out
the individual protostars and show that they are characterized
by violent, flaring activity that produces X-ray flares 100 to
100,000 times more energetic than the flares from the Sun.
Chandra X-ray Observatory ACIS
CXC operated for
NASA by the Smithsonian Astrophysical