Earth's inner core is slowing down; could affect the planet's magnetic field, says new study
By analyzing seismic waves from earthquakes from the 1960s, researchers from Peking University deduced that the Earth's inner ...
The 1960s Tech Keeping NASA’s Voyager Probes Alive for Nearly 50 Years
Solar panels are next to useless in the outer solar system, so NASA’s Voyager probes rely on nuclear batteries—technology ...
SpaceX Dragon successfully splashes down, returning NASA astronauts back to Earth
NASA astronauts Suni Williams and Butch Wilmore have returned safely to Earth after delays kept them in space for 9 months.
Highlights: NASA astronauts return to Earth after an unexpected nine-month stay in space
NASA’s Butch Wilmore and Suni Williams, whose weeklong Boeing Starliner mission turned into an extended stay in space, have ...
BBC2d
Plate tectonics
Inner core The inner core is 2900 km below the Earth’s surface, in the centre of the Earth, and is the hottest layer. It is spherical and solid and made up of iron and nickel. Its temperatures ...
Back on Earth, astronauts can say goodbye to blurry eyes, puffy faces, ‘chicken legs’ and a little extra height
Astronauts Barry “Butch” Wilmore and Suni Williams are back on Earth after nearly nine months in space and readjusting to ...
Radioisotope generators—inside the 'nuclear batteries' that power faraway spacecraft
Powering spacecraft with solar energy may not seem like a challenge, given how intense the sun's light can feel on Earth.