The cruel heat is back as southern Europe slips deeper into summer. In homes and offices, air conditioning is sweet relief.

Cyril Dupuy, the founder of smart telescope maker Vaonis, has set a new record by capturing Europe's highest-altitude image ...

Chile's Vera Rubin observatory is named for the astronomer who changed the way we think about how galaxies move.

New observations from the James Webb Space Telescope (JWST) are painting a new picture of Jupiter's moon Europa and revealing the hidden chemistry of the icy moon's interior.