Evidence for planet formation in Earth-like orbit around young star.
The star TW Hydrae is a popular target of study for astronomers because of its proximity to Earth (only about 175 light-years away) and its status as an infant star (about 10 million years old). 970 more words
Astronomers using NASA’s Swift satellite have detected an outburst of high-energy X-rays emanating from a binary system in the constellation Cygnus – signs that a black hole is reawakening after 25 years of slumber. 456 more words