The three possible outcomes of Trump's impeachment trial

737 MAX problems not solved, warns former Boeing manager

Lockheed, Boeing reveal 'Defiant X' design for U.S. Army's Future Long Range Assault helicopter

Canada to use dams to power huge hydrogen fuel plant

15 Chinese warplanes enter Taiwan's ADIZ in one day

China built massive Covid camp in a few days

Astronomers find 'spider stars' that devour their companions

Astronomers find 'spider stars' that devour their companions

Saildrone: Solar and wind-powered vessel sets sail to map the ocean floor

What we know about the redesigned Air Force One

'Heat blob' contributing to sea ice loss in Arctic

Trapped miners still alive, many days after cave-In

NASA extends Juno's mission through 2025 to explore Jupiter's moons and rings

Rocket glitch could be big setback for NASA's moon mission

Paris plans to make itself even more beautiful

Giant prehistoric 'prawns' developed night-vision eyes

How the scaled-down Biden inauguration will work

Scientists observe electric eels hunting in groups

Iran converts massive oil tanker into forward floating base

'Super-Earth' discovered orbiting one of the galaxy's oldest stars

Conservatives turning to these social media platforms

Engineers fix ice station amid risk of ice calving

China plans massive dam near disputed border with India

Engineers fix ice station amid risk of ice calving

Indonesian Boeing 737 crashes after takeoff with 62 on board

Astronomer doubles down: 'Oumuamua could be alien craft'

US Capitol stormed by angry Americans — timeline

Explainer: How Trump could be removed from office

UK's largest warship ever is ready for war

Architect's floating igloos would protect penguins and cool sea ice

Venezuela to make its economy 100% digital — no notes

Human sewage, rotting food to power new trains

SpaceX wants to catch returning boosters before they land