Latest about interstellar travel
The proposed "Interstellar Probe" mission would aim to reach 90 billion miles (145 billion kilometers) from the sun, pushing the limits of engineering know-how and space technology.
A search for radio signals coming from 'Oumuamua, the mysterious visitor from afar that zoomed through the inner solar system last fall, came up empty, a new study reports.
Going, going — nope, it's still just going, NASA says of its Voyager 2 probe, which the agency realized was approaching the edge of the solar system back in early October.
Ever since astronomers first spotted their first-ever object from beyond our solar system, it has offered more questions than answers — what is it? Where did it come from? Why is it so darn weird?
The biggest hurdle to mounting an interstellar mission may be humanity's short attention span.
What can we learn from comets and asteroids, the universe's most misunderstood objects?
Another interstellar asteroid has been spotted in our solar system — and this one is not a visitor but a long-term resident, a new study reports.
