A low pulse on this pin (below 1/3 of VCC) sets the internal flip-flop and makes the output go HIGH. When the voltage on this pin reaches 2/3 of VCC, it resets the flip-flop, and the output goes LOW.

Contrary to appearances, the vehicle that looked like a little space shuttle was not broken down when it was being hauled down the runway at Kennedy Space Center. Sierra Space’s Dream Chaser ...

Sierra Space performed tow tests of its Dream Chaser spaceplane at the former shuttle runway at the Kennedy Space Center. Credit: Sierra Space WASHINGTON — Sierra Space has completed key testing ...

Dream Chaser, the vehicle that has been likened to a miniature version of NASA’s space shuttle, continues to reach major milestones despite its uncertain future. Sierra Nevada, the company behind the ...

Dream Chaser Tenacity in its processing hangar at NASA's Kennedy Space Center in August. Credit: Sierra Space For the last 18 years, privately owned Sierra Nevada Corp. has been pitching NASA on plans ...

LG’s attempts to prove that it’s much more than just an OLED TV brand have taken their most spectacular turn yet with the launch of a new 136-inch Micro LED display targeted at home cinema fans that ...

The long-anticipated visit of the Dream Chaser spaceplane to the International Space Station (ISS) in 2026 has now been officially shelved. In a joint decision by NASA and Sierra Space, the spacecraft ...

Sierra Space and NASA have renegotiated their contract for the Dream Chaser spaceplane that will allow the spacecraft to make its first orbital flight next year as a free flier instead of visiting the ...

Sierra Space had been looking to join SpaceX and Northrop Grumman as one of three commercial resupply partners for NASA aiming to fly its Dream Chaser spacecraft to the International Space Station.

The Dream Chaser spaceplane, which has been under development for two decades, now seems like it might be further than ever from taking flight. On Thursday, NASA, confirming an earlier Ars Technica ...

If you look at our picks for the best TVs you'll see that two technologies dominate: OLED and mini-LED. Both offer incredible picture quality and are the cutting edge of TV tech. As great as they both ...

The Dream Chaser is the result of a combined effort by NASA and the private company Sierra Space. The private plane is intended to be reusable, allowing for multiple flights to and from Earth and the ...