Astrophysics | Page 4 of 47 | Astronomy.com

There isn’t a scale large enough to weigh galaxies like NGC 7714. ESA, NASA; Acknowledgement: A. Gal-Yam (Weizmann Institute of Science)

Ask Astro: How do scientists weigh planets and other celestial objects?

Exotic Objects, Milky Way

How do you find a black hole? An astronomer explains the thrilling hunt

Could a telescope see the beginning of time? An astronomer explains

OSIRIS-REx’s TAGSAM sample collector

Top 10 space stories of 2023

Cosmology, Science

Will we ever figure out how to defy gravity?

Alpha Centauri (the yellow star just to the right of center) is the closest bright star to Earth. At 4.35 light-years away, on a scale model where Earth is the size of a bacterium, this star would sit 4.34 miles (nearly 7 km) distant.

Strange Universe: Empty conclusions

Dishes of the Karl G. Jansky Very Large Array in New Mexico line up beneath the starry sky. Radio waves are just one of the numerous signals from space that comprise the soundtrack of the cosmos.

Scientists search for the soundtrack of the universe

An artist’s representation of one of brightest explosions ever seen in space, an LFBOT. Called a Luminous Fast Blue Optical Transient (LFBOT). Credit: NASA, ESA, NSF's NOIRLab, Mark Garlick , Mahdi Zamani

Exotic Objects, Science

‘Tasmanian devil’ rises from slumber with brilliant bursts of light

If you could shrink down to the size of an atom, what would you see?

Illustration of a kilonova

Is gravity instantaneous?

The Large Hadron Collider at CERN

Does E = mc^2 hold true for dark matter and dark energy?

X-ray composite image of pulsar PSR B1509-58 and its wind nebula MSH 15-52

The science behind NASA’s ‘ghost hand’ image