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NASA's venerated Hubble Space Telescope has captured a striking image of the larger galaxy NGC 7714 colliding with its smaller companion NGC 7715. A similar cataclysmic collision is due to take place between our own galaxy – the Milky Way – and our closest neighbor, the Andromeda galaxy, in around four billion years. The image itself is a composite, comprised of a number of images captured by Hubble over a wide range of wavelengths. Read More

The dwarf planet Ceres has come into sharper focus with NASA's Dawn spacecraft sending back the best images yet of the asteroid. Shot on January 25 from a distance of 147,000 mi (237,000 km) as the unmanned probe closes in for its March rendezvous, the resolution was 30 percent better than the best images obtained by the Hubble space telescope. Read More

The Hubble space telescope has given us decades of incredible images, but it's reaching the end of its service life and the question is, what will come after? One possibility is the Aragoscope from the University of Colorado Boulder, which uses a gigantic orbital disk instead of a mirror to produce images 1,000 times sharper than the Hubble's best efforts. Read More
NASA has released a stunning panoramic mosaic of our closest galactic neighbor, the Andromeda Galaxy. The image was captured by NASA's flagship Hubble Space Telescope, and features an impressive 100 million stars spanning 40,000 light years. The image is comprised of 1.5 billion pixels and represents Hubble's largest mosaic to date. Read More
NASA's Dawn spacecraft is currently in the final stages of its historic mission to place a satellite in orbit around the dwarf planet Ceres. The primary mission will take 16 months and will see the robotic explorer capture detailed images and measurements of Ceres, greatly improving our knowledge of the solar system. Read More
The Dawn spacecraft has lifted the veil on another corner of the Solar System by taking its best image yet of the dwarf planet Ceres. The nine-pixel-wide image was taken from a distance of 740,000 mi (1.2 million km) from Ceres as part of the final calibration of Dawn's science camera as the unmanned probe approaches the 590 mi (950 km) wide planetoid, which it will rendezvous with and orbit in March of next year. Read More
With NASA'S New Horizons spacecraft scheduled to pass Pluto next year, the space agency has announced the discovery of three Kuiper Belt objects (KBO); one of which may be the unmanned probe’s next destination. Located in the constellation of Sagittarius, the primordial asteroids were found after a detailed survey using the Hubble Space Telescope. Read More
In a display of interstellar teamwork, NASA’s Hubble, Spitzer and Kepler space telescopes have discovered clear skies and water vapor in the atmosphere of a Neptune-sized planet orbiting a star 120 light years from Earth. According to the space agency, this may not only provide insights into the formation of giant exoplanets, but also act as a new tool for detecting water on Earth-like planets orbiting other stars. Read More
A star accompanying a rare type of supernova in close orbit has been discovered by astronomers using NASA's Hubble Space Telescope. Confirming a long-held theory that the explosion originated in a binary star arrangement, observations verify that the companion star precipitated the destruction of the aging primary star by drawing off mass until its core collapsed and triggered a supernova event. Read More
An international team of astronomers has used a range of telescopes including the Atacama Large Millimeter/submillimeter Array (ALMA) to observe a pair of galaxies colliding at a time when the universe was just half its current age. The project made use of a gravitational magnifying glass created by the gravity of a galaxy between Earth and the subject, and required observations in both visible and infrared light. Read More