When the world’s worries threaten to weigh you down, step outside. It’s a welcome reminder of how small we are in this great, ...

The Instituto Superior Técnico (IST) conducted its first hypersonic test, in which the speed reached is equivalent to "crossing mainland Portugal, from north to south, in just over five minutes," the ...

The Taurus is a practical and well-grounded zodiac sign that has a strong desire to be surrounded by love and beauty. Here ...

LISBON, Jan. 22 (Xinhua) -- Portugal has carried out its first hypersonic test under real conditions, marking the country's entry into experimental research on extreme high-speed flows, the Instituto ...

Old satellites and other space junk fall toward Earth every day, and the shock waves they create could be used to track their ...

Scientists have just found a new way to track the uncontrolled reentry of falling space junk. As they punch into the ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—pose a risk to humans when they fall to ...

Falling satellites and large orbital debris create massive sonic booms and scientists are using them to track dangerous space ...