This most fundamental question was famously posited by none other than Nobel laureate physicist Enrico Fermi (1901–1954).

Rain is one of nature’s most fascinating processes, yet most people take it for granted. Every drop that falls from the sky ...

Centimeter-sized pebbles have been detected in protoplanetary discs using e‑MERLIN, filling in a critical phase of planet ...

Wildfires have spread across the planet for millennia, but they are increasing as the climate warms. Decimated forests, ...

Scientists created a simulation showing that early Earth still retained chemical traces of its igneous youth, 4.5 billion years ago.

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Sedna, a distant dwarf planet three-quarters the size of Pluto, is inching toward the brightest star in our sky — and in 2076 ...

Astronomers claim to have found new evidence supporting a controversial observation that our galaxy is residing in an ...

New research from HKU geologists suggests that Earth's first continents were born not from plate tectonics, but from deep ...

Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

The interstellar comet 3I/Atlas is the fastest and largest of its kind, giving astronomers a rare glimpse into extrasolar ...

For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...