A six-planet parade — an alignment of Mercury, Venus, Neptune, Saturn, Uranus and Jupiter — is coming Feb. 28. When and where ...

Astronomers report the rapid transition of WOH G64 from a red supergiant to a yellow hypergiant, based on photometric and spectroscopic observations published in Nature Astronomy.

Explore the differences between Astrophysics and Astronomy to help you decide which field is a better fit for your interests ...

When we look up at the night sky and see a satellite glide past, we might not consider climate change or the ozone layer. Space may feel separate from the environmental systems that sustain life on ...

A recent SpaceNews opinion article argued that it is time to “take astronomy off Earth.” The suggestion is straightforward: If satellite constellations and commercial space activity threaten ...

Earth-like planets have a thin crust, a large mantle (which contains a lot of molten magma), and a core. Inside these ...

Introduction to Astronomy is a college class usually filled with excitement and a lot of questions about outer space. Questions like: What are black holes? Are there planets out there that are ...

An international collaboration using the Low Frequency Array (LOFAR) has published an exceptionally detailed radio sky map, ...

A newly detected X-ray transient may reveal the first direct evidence of an intermediate-mass black hole consuming a white dwarf. A newly observed cosmic outburst is giving astronomers a rare glimpse ...

Gravitational lensing exposed a distant protocluster once seen as a faint smudge, revealing eleven dusty star-forming galaxies through combined ALMA and NSF VLA observations.

Why does the Moon turn red during a lunar eclipse? Kevin KehoeGreat Lakes, Illinois You can credit Earth's atmosphere with ...