This is an artist's concept of the nearby exoplanet LTT 1445Ac, which is the size of Earth. The planet orbits a red dwarf star. The star is in a triple system, with two closely orbiting red dwarfs seen at upper right. The black dot in front of the bright light-red sphere at image center is planet LTT 1445Ac transiting the face of the star.

NASA’s Hubble Measures the Size of the Nearest Transiting Earth-Sized Planet

The diminutive planet, LTT 1445Ac, was first discovered by NASA's Transiting Exoplanet Survey Satellite (TESS) in 2022. But the geometry of the ...
NASA's Webb, Hubble Combine to Create Most Colorful View of Universe

NASA’s Webb, Hubble Combine to Create Most Colorful View of Universe

NASA’s James Webb Space Telescope and Hubble Space Telescope have united to study an expansive galaxy cluster known as MACS0416 ...
Gemini North Reveals the Formation of Dense Dwarf Galaxy ‘Fossils’

Gemini North Reveals the Formation of Dense Dwarf Galaxy ‘Fossils’

Astronomers using the Gemini North telescope, one half of the International Gemini Observatory operated by NSF’s NOIRLab, have captured the ...
NASA's Webb Discovers New Feature in Jupiter's Atmosphere

NASA’s Webb Discovers New Feature in Jupiter’s Atmosphere

NASA’s James Webb Space Telescope has discovered a new, never-before-seen feature in Jupiter’s atmosphere. The high-speed jet stream, which spans ...
New Siena Galaxy Atlas Delivers Improved Measurements of Almost 400,000 Nearby Galaxies

New Siena Galaxy Atlas Delivers Improved Measurements of Almost 400,000 Nearby Galaxies

Astronomers have created a detailed atlas of almost 400,000 galaxies in our cosmic neighborhood. The Siena Galaxy Atlas was compiled ...
Rubin Observatory Will Help Unravel Mysteries of Dark Matter and Dark Energy

Rubin Observatory Will Help Unravel Mysteries of Dark Matter and Dark Energy

Rubin Observatory will be a leading resource for cutting-edge astronomy and astrophysics when it comes online in 2025. Using an ...
NASA's Hubble Finds Bizarre Explosion in Unexpected Place and Gemini South Captures Cosmic ‘Finch’

NASA’s Hubble Finds Bizarre Explosion in Unexpected Place and Gemini South Captures Cosmic ‘Finch’

A very rare, strange burst of extraordinarily bright light in the universe just got even stranger – thanks to the ...
NSO: Magnetic fields in solar plage regions: insights from high-sensitivity spectropolarimetry

NSO: Magnetic fields in solar plage regions: insights from high-sensitivity spectropolarimetry

In the ever-evolving realm of solar physics, a quest to understand the enigmatic solar plages (pronounced /pleɪdʒ/) has led to ...
STScI: Webb Reveals New Structures Within Iconic Supernova

STScI: Webb Reveals New Structures Within Iconic Supernova

NASA’s James Webb Space Telescope has begun the study of one of the most renowned supernovae, SN 1987A (Supernova 1987A) ...
STScI: Neptune's Disappearing Clouds Linked to the Solar Cycle

STScI: Neptune’s Disappearing Clouds Linked to the Solar Cycle

Astronomers have uncovered a link between Neptune's shifting cloud abundance and the 11-year solar cycle, in which the waxing and ...
NOIRLab: Astronomers Find Progenitor of Magnetic Monster

NOIRLab: Astronomers Find Progenitor of Magnetic Monster

A team of researchers, including NOIRLab astronomer André-Nicolas Chené, has found a highly unusual star that has the most powerful ...
Rubin Observatory: Visitors from Distant Stars: Rubin Observatory Will Detect an Abundance of Interstellar Objects Careening Through Our Solar System

Rubin Observatory: Visitors from Distant Stars: Rubin Observatory Will Detect an Abundance of Interstellar Objects Careening Through Our Solar System

Many as-yet-undiscovered interstellar objects exist throughout our Milky Way Galaxy: comets and asteroids that have been ejected from their home ...