Keith Cooper

Launched with faulty vision, the Hubble Space Telescope and NASA were a laughing stock – until seven astronauts performed a series of daring spacewalks to fix it.

Some of the strongest, longest, smallest, biggest and best reasons to celebrate space as the year comes to a close. There are a handful of awesome firsts in here too.

Gravitationally lensed images of two different supernovas in the same galaxy can be used to measure the expansion rate of the universe.

The observations are vital for piecing together the science objectives for a future mission to Uranus.

"We knew these galaxies were prodigious star factories, perhaps among the biggest the universe has ever seen."

Hot Jupiters are gas giants so close to their star that the star's heat and radiation can blow the planets' atmosphere away.

The winds extend tens of thousands of light years above and below galaxies.

Measurements of how fast the universe is expanding differ depending on how you measure the rate. Could a huge under-density of galaxies, including the Milky Way, be to blame?

Space mysteries We have rocky moons, ocean moons and ice moons, but where are all the gas moons?

A dark nebula, also known as "The Brick," was imaged by the James Webb Space Telescope.

What is causing the structure of the dust to evolve, and where exactly the dust comes from, is still a mystery.

The discovery is another step along the road to showing that the stuff of life originally came to Earth from space.

A new study helped scientists better constrain the possible properties of dark matter particles.

JUICE blasted off in April 2023 on a mission to explore Jupiter’s ocean moons and learn more about whether they could support life.

Conditions within dwarf galaxies initially produce more stellar-mass black holes than supernova explosions.

The JWST has imaged an intense region of star-formation near the black hole at the center of the Milky Way, making findings that could be key to understanding the earliest galaxies.

The rocky exoplanet LTT 1445Ac, located about 22.5 light years away, has been observed transiting its star by the Hubble Space Telescope.

Missing neon in a planet-forming disk of gas and dust indicates a change in radiation that's slowly eroding the disk.

We see these galaxies as they were over 13.45 billion years ago, just between 330 and 350 million years after the Big Bang.

The new spectrograph, named IGRINS-2, will probe regions of star-birth and star-death, as well as observe exoplanets and track the evolution of galaxies.

Water vapor observed sublimating from tiny chunks of rock within planet-forming disks is a sign that a process called "pebble accretion" kickstarts the birth of new worlds.

How did supermassive black holes form? JWST and Chandra may have found the answer.

X-ray observations from the supernova remnant SN 1006 show its magnetic fields align to accelerate cosmic rays.

Large amounts of dust are being expelled from the Uranus system to settle in the ecliptic plane and contribute to the zodiacal light, a new study suggests.