Before arriving at the moon, the small satellite mission will use the gravity of the sun, Earth, and moon over several months ...

Astronomers have discovered what seems to be a star racing through the Milky Way at 1.2 million mph, dragging a Neptune-sized ...

Astronomers have discovered what seems to be a star racing through the Milky Way at 1.2 million mph, dragging a Neptune-sized ...

New findings explain the Phoenix cluster's mysterious starburst. Data confirm the cluster is actively cooling and able to generate a huge amount of stellar fuel on its own.

The space station and one other Easter egg — the site of NASA's next human moon landing — are hidden in this lucky photo.

Alas, the miracle could not last. The solar storms were heating Earth's upper atmosphere, causing it to inflate and increase ...

Many photos McCarthy has taken of the space station in the past show the ship as a silhouette in Earth's shadow. This time he ...

Surrounded by hundreds of onlookers, Hirokuni Kakiuchi stood with his neck craned toward the ceiling at the 2011 Tokyo ...

Is Earth really exceptional?  A new book seems to reaffirm that notion.  But given the right conditions, primitive life may be a mere byproduct of biophysics.

Euclid, a space telescope on a mission to uncover the secrets of dark matter and dark energy, has already made a stunning ...