Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be confused for Mars. The alluvial basin is full of tan and gray regolit ...

As 3I/Atlas neared its closest point to the sun in its orbit, the internet was abuzz with curiosity about the comet.

According to astronomer Avi Loeb, it's the perfect day to test whether interstellar object 3I/ATLAS is the remnant of an ...

Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...

VIPs cut the ribbon at Portal Space Systems’ HQ in Bothell, Wash. From left: U.S. Rep. Suzan DelBene; Portal co-founders Prashaanth Ravindran, Jeff Thornburg and Ian Vorbach; and Bothell Mayor Mason ...

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...

BROOMFIELD, Colo., August 11, 2025 – MMA Space has developed a low-cost solar array capable of generating tens of kilowatts that can be manufactured in a fraction of the time of conventional solar ...

Scientists at the European Space Agency used a laser to communicate with a spacecraft 165 million miles (265 million kilometers) away in deep space for the first time, marking a major step forward in ...

How do you control a nuclear space propulsion system? Very carefully. To help with this, the Oak Ridge National Laboratory (ORNL) has built a simulated nuclear reactor test bed to develop the engines ...

While its star projector leaves a lot to be desired, the Science Can Solar System Planetary Projector is a fantastic educational tool for kids, with its solar system model, complete with talking ...