Spectroscopy

Using light spectra to reveal chemical makeup and physical properties of distant objects.

Articles about Spectroscopy

Space Webb May Have Spotted the First Stars

Webb May Have Spotted the First Stars
New JWST spectra have highlighted a handful of ultra‑distant, compact objects whose light matches predictions for hypothetical dark‑matter‑powered 'dark stars' — but the signal is…
Space Watch NASA Reveal Images of 3I/ATLAS

Watch NASA Reveal Images of 3I/ATLAS
NASA will host a live briefing on Nov. 19, 2025 to release new images of the interstellar comet 3I/ATLAS. Here’s when to tune in, what instruments produced the pictures, and what …
Science Musk: 3I/ATLAS Could Threaten Humanity

Musk: 3I/ATLAS Could Threaten Humanity
Elon Musk warned on a recent podcast that the interstellar visitor 3I/ATLAS—while almost certainly not aimed at Earth—would be catastrophic if it ever struck the planet. Scientist…