A proposed five-satellite Cosmic Positioning System could measure cosmic distances directly and help address discrepancies in the Hubble constant through solar system–scale triangulation.

Comet 41P slowed its rotation to a halt and then began spinning in the opposite direction, surprising scientists.

A Northwestern University-led team of astronomers used NASA’s James Webb Space Telescope to discover a former star that ...

Hubble Space Telescope observations of white dwarf star G238-44 has shown that it is "consuming both rocky-metallic and icy ...

New research using the James Webb Space Telescope offers the most detailed portrait yet of how auroras form on Uranus.

Whether purchased by space enthusiasts, stamp collectors or casual letter writers, these stamps bring the wonders of the universe a little closer to home. Crab Nebula The Crab Nebula, located about 6, ...

According to USPS, the new Priority Mail stamp is priced to match the Priority Mail Flat-Rate Envelope, and the new Priority ...

The James Webb Space Telescope has observed the iconic Pillars of Creation and the view is spectacular! Travel 6,500 ...

A lucky alignment of galaxies allowed researchers to identify the most powerful and distant "space laser" ever found.

HUBB presents a classic example of a small-picture versus a big-picture megatrend investment case. Click here to find out why ...

Forty million years ago, a star in a nearby galaxy exploded, spewing material across space and generating a brilliant beacon of light. That light traveled across the cosmos, reaching Earth June 29, ...