interstellar travel

There may be yet another use for SpaceX's huge Mars-colonizing rocket.

The interstellar asteroid that zoomed past Earth last month is like nothing we’ve seen before, new observations reveal.

We now know what to call the mysterious object from interstellar space that zoomed past Earth last month.

If humanity doesn't become a truly spacefaring species in the next five centuries or so, we may well go extinct, Stephen Hawking said, according to media reports.

Experts in interstellar travel have picked future candidates to make the first extrasolar trek. Their names: the nematode Caenorhabditis elegans and tardigrades, otherwise known as water bears.

A visitor from interstellar space has apparently been spotted in our solar system for the first time ever.

Scientists, engineers and exploration advocates will gather in central California this week to help plan out humanity's journey to the stars.

Fusion-powered rockets that are only the size of a few refrigerators could one day help propel spacecraft at high speeds to nearby planets or even other stars, a NASA-funded spaceflight company says.

Some of the first spacecraft that humanity sends to other solar systems may carry microscopic ambassadors from Earth.

The first fleet of robotic spacecraft that humanity launches to explore nearby exoplanets may include a few kamikazes.