MAVEN spacecraft close to entering Mars orbit — and it won’t be alone CNN

NASA says its latest Mars-exploring spacecraft is on track to fire up its thrusters and enter orbit this Sunday night, completing a 10-month journey of 442 million miles.
NASA’s MAVEN craft will live up to its formal name — the Mars Atmosphere and Volatile Evolution craft — by helping scientists figure out how ancient Mars changed so dramatically into the planet we know today.
It will be the first mission devoted to studying the upper Martian atmosphere as a key to understanding the history of Mars’ climate, water and habitability.