Can JWST see galaxies made of primordial stars?

All stars are composed of mostly hydrogen and helium, but most stars also have measurable amounts of heavier elements, which astronomers lump into the category of "metals." Our sun has more metals than most stars because ...

Hubble inspects two galaxies connected by a luminous bridge

This image from the NASA/ESA Hubble Space Telescope shows two of the galaxies in the galactic triplet Arp 248—also known as Wild's Triplet—which lies around 200 million light-years from Earth in the constellation Virgo.

Astronomers find cosmic rays driving galaxy's winds

Astronomers using the National Science Foundation's Karl G. Jansky Very Large Array (VLA) have discovered an important new clue about how galaxies put the brakes on vigorous episodes of star formation. Their new study of ...

15 spectacular photos from the Dark Energy Camera

From high atop a mountain in the Chilean Andes, the Dark Energy Camera has snapped more than one million exposures of the southern sky. The images have captured around 2.5 billion astronomical objects, including galaxies ...

Hubble spies a lonely spiral

The NASA/ESA Hubble Space Telescope's Wide Field Camera 3 imaged this lonely spiral galaxy called UGC 9391.

Webb's icy instrument reveals complex structures

These spectacular images feature the spiral galaxy IC 5332, taken by the NASA/ESA Hubble Space Telescope (above) and the NASA/ESA/CSA James Webb Space Telescope (below). The images display the powerful capabilities that both ...

Hubble images unusual galaxy NGC 1156

The galaxy featured in this image from NASA's Hubble Space Telescope has a shape unlike many of the galaxies familiar to Hubble. Its thousands of bright stars evoke a spiral galaxy, but it lacks the characteristic "winding" ...

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