Ultima Thule, at 4 billion miles (about 6.4 billion km) from the Sun and 1 billion miles (about 1.6 billion km) from Pluto, will be the most distant object ever directly explored, according to NASA.

Both probes are the only spacecraft to operate beyond the heliosphere, the sun’s bubble of magnetic fields and particles that extends well beyond the orbit of Pluto ... 2’s flyby of Saturn ...

Today NASA said that the Dawn spacecraft has fallen out of contact with Earth, presumably because it’s run out of the thruster… Read More The once-mysterious bright spots shining on the surface of the ...

He turned 60 that year and, seven years later, was a scientific team collaborator for NASA’s Pluto flyby. According to a report from the Wall Street Journal, an increasing number of U.S ...

Both probes are the only spacecraft to operate beyond the heliosphere, the sun’s bubble of magnetic fields and particles that extends well beyond the orbit of Pluto. Instruments ... operate through ...

The motor was tested to 500,000 steps on Earth, which guaranteed it would operate through Voyager 2’s flyby of Saturn in August 1980 ... and particles that extends well beyond the orbit of Pluto.

The motor was tested to 500,000 steps on Earth, which guaranteed it would operate through Voyager 2’s flyby of Saturn in ... well beyond the orbit of Pluto. Instruments necessary for collecting ...

Both probes are the only spacecraft to operate beyond the heliosphere, the sun’s bubble of magnetic fields and particles that extends well beyond the orbit of Pluto. Instruments ... operate through ...

By Aimee Ortiz The Red Planet and its tiny moon Deimos were recorded at a very near distance as the asteroid-chasing spacecraft completed a flyby on Wednesday ... relative to Pluto, and is ...