Phase Four's new Maxwell Block 2 electric thruster (left) next to its original Block 1 thruster. Credit: Phase Four WASHINGTON — Satellite electric propulsion company Phase Four has completed testing ...

Earlier this year, NASA mission controllers faced a challenging decision that could have marked the end of Voyager 1's decades-long journey. Launched in 1977 to explore the outer solar system, the ...

One of the most expensive parts of any rocket launch is getting the rocket off the ground and into space. This part of the mission takes a massive amount of fuel and money to pull off. That's why ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Engineers at NASA ...

Voyager 1 spent the last 47 years hurtling in a straight line away from Earth, exploring the deepest reaches of space that humanity has ever ventured. However, NASA must carefully manage Voyager 1 as ...

Before clearing Boeing’s Starliner crew capsule to depart the International Space Station and head for Earth, NASA managers want to ensure the spacecraft’s problematic control thrusters can help guide ...

As with all aging bodies, clogged tubes form an increasing issue. So too with the 47-year old Voyager 1 spacecraft and its hydrazine thrusters. Over the decades silicon dioxide from an aging rubber ...

Before assembly in a propulsion device, Miles Space captured imagery during tests of five thruster heads. The imagery was captured with long-exposure photography. SAN FRANCISCO – Miles Space has ...

Two NASA astronauts aboard Boeing’s Starliner capsule arrived at the International Space Station Thursday, successfully docking with the orbiting outpost despite issues with the spacecraft’s thrusters ...

Space startup Phase Four will be rolling out the next generation of its Maxwell radio-frequency plasma propulsion system next year, which the company says offers key performance improvements to allow ...