Humanity's understanding of the solar system has evolved dramatically following the advent of spaceflight. Over the past seven decades, thousands of sophisticated spacecraft have been launched on ...

As NASA's New Horizons spacecraft traveled through the Kuiper Belt at a distance of 438 million miles from Earth, an international team of astronomers used the far-flung probe to conduct an ...

The New Horizons team will have to wait 20 months for all of the spacecraft’s data and images to return to Earth, but here is what they’ve learned so far. What We've Learned About Ultima Thule From ...