最近 evidence of quasars contradicts 人気 theory of black holes in favor of MECOs (Magnetospheric Eternally Collapsing Objects), as black holes cannot have magnetic fields. This 記事 from New Scientist gives a summary.
A false-color モザイク picture from the Mars Odyssey orbiter of the Melas Chasma, which is being considered as a landing site for the Mars Science Laboratory rover.
The Wikipedia entry on magnetospheric eternally collapsing objects, the theoretical alternative to black holes. A concise, fairly readable overview of the concept.