But many alien worlds capable of supporting life may not have such ... always faces the sun while the other always faces away. A tidally locked planet's year is the same length as its day.
Researchers have developed a new method using the Allen Telescope Array to search for interplanetary radio communication in the TRAPPIST-1 star system.
In a few hours, a spacecraft should blast-off from Florida on the hunt for signs of alien life. Its destination is Europa, a deeply mysterious moon orbiting the distant planet Jupiter. Trapped ...