Browsing Tag
observational astronomy
3 posts
Why are some stars always visible while others come and go with the seasons?
Stars near the north celestial pole circle the North Star, Polaris. Photographed in the Eastern Sierra Nevada, Calif.…
The first stars may not have been as uniformly massive as astronomers thought
Stars form in the universe from massive clouds of gas. European Southern Observatory, CC BY-SA Luke Keller, Ithaca…
New Study Confirms Faster-than-Expected Universe Expansion, Deepening Hubble Tension
At a Glance A new study has confirmed what many researchers have long suspected: the universe is expanding…