Webb and Hubble capture detailed views of DART impact

Webb and Hubble capture detailed views of DART impact

Two of the great space observatories, the NASA/ESA/CSA James Webb Space Telescope and the NASA/ESA Hubble Space Telescope, have captured views of a unique experiment to smash a spacecraft into a small asteroid. Observations of NASA’s Double Asteroid Redirection Test (DART) impact mark the first time that Webb and Hubble were used to simultaneously observe the same celestial […]

NASA, SpaceX to Study Hubble Telescope Reboost Possibility

NASA, SpaceX to Study Hubble Telescope Reboost Possibility

NASA and SpaceX signed an unfunded Space Act Agreement Thursday, Sept. 22, to study the feasibility of a SpaceX and Polaris Program idea to boost the agency’s Hubble Space Telescope into a higher orbit with the Dragon spacecraft, at no cost to the government. There are no plans for NASA to conduct or fund a servicing mission […]

Dead Star Caught Ripping Up Planetary System

Dead Star Caught Ripping Up Planetary System

The illustration above shows a white dwarf star siphoning off debris from shattered objects in a planetary system. The Hubble Space Telescope detects the spectral signature of the vaporized debris that revealed a combination of rocky-metallic and icy material, the ingredients of planets. The findings help describe the violent nature of evolved planetary systems and […]

Hubble Investigates an Enigmatic Star Cluster

Hubble Investigates an Enigmatic Star Cluster

Like Sherlock Holmes’s magnifying glass, the NASA/ESA Hubble Space Telescope can peer into an astronomical mystery in search of clues. The enigma in question concerns the globular cluster Ruprecht 106, pictured here. Unlike most globular clusters, Ruprecht 106 may be what astronomers call a single population globular cluster. While the majority of stars in a […]

Hubble Captures a Galactic Dance

Hubble Captures a Galactic Dance

This NASA Hubble Space Telescope image finds the large spiral galaxy, NGC 3227, wrapped in a turbulent gravitational dance with its companion, the elliptical galaxy NGC 3226. The twosome – collectively known as Arp 94 – is relatively nearby, between 50 and 60 million light-years away toward the constellation Leo, the Lion. A close look […]

Hubble Reaches New Milestone in Mystery of Universe’s Expansion Rate

Hubble Reaches New Milestone in Mystery of Universe's Expansion Rate

Completing a nearly 30-year marathon, NASA’s Hubble Space Telescope has calibrated more than 40 “milepost markers” of space and time to help scientists precisely measure the expansion rate of the universe – a quest with a plot twist. Pursuit of the universe’s expansion rate began in the 1920s with measurements by astronomers Edwin P. Hubble and Georges Lemaître. […]

Hubble Views a Galactic Oddity

Hubble Views a Galactic Oddity

The ultra-diffuse galaxy GAMA 526784 appears as a tenuous patch of light in this image from the NASA/ESA Hubble Space Telescope. This wispy object resides in the constellation Hydra, roughly four billion light-years from Earth. Ultra-diffuse galaxies such as GAMA 526784 have a number of peculiarities. For example, they can have either very low or […]

Hubble observations used to answer key exoplanet questions

Hubble observations used to answer key exoplanet questions

Archival observations of 25 hot Jupiters by the NASA/ESA Hubble Space Telescope have been analysed by an international team of astronomers, enabling them to answer five open questions important to our understanding of exoplanet atmospheres. Amongst other findings, the team found that the presence of metal oxides and hydrides in the hottest exoplanet atmospheres was […]