NASA's Spitzer Space Telescope Discovers Seven Earth-Sized Worlds Orbiting Nearby Star

Artist’s conception of standing on the surface of exoplanet TRAPPIST-1f. Image Credit: NASA/JPL-Caltech

The search for exoplanets – planets orbiting other stars – has been one of the most exciting developments in astronomy and space science in recent years. The first couple exoplanets were found in 1992, and now over 3,400 have been confirmed, […]

Planetary Swing: Spitzer Space Telescope Probes Extreme Climates on Hot Jupiters and Super Earths

A simulation showing the turbulent atmosphere of exoplanet HD 80606b, based on data gathered with the Spitzer space telescope. This hot Jupiter-type world has one of the most elongated orbits known for an exoplanet, one that resembles the orbits of comets in our Solar System. Image Credit: NASA/JPL-Caltech/MIT/Principia College

Seen from the perspective of […]

Spitzer Data Suggests Kepler's Strange 'Alien' Star is Surrounded by Comets, not Alien Megastructures

An artist’s illustration of cometary fragments passing in front of a star. A new study based on data gathered by NASA’s Spitzer Space Telescope suggests that the anomalous dips in brightness that have been observed around the star KIC 8462852 are caused by the fragmentation of similar cometary fragments. Image Credit: NASA/JPL-Caltech

What is […]

Astronomers Probe Light From Very Early Universe, Discover Most Distant Galaxy to Date

An image of the galaxy EGS8p7, as seen from the Hubble Space Telescope. The top inset at the right shows a magnified view of the same image centered around EGS8p7, while the bottom insert shows the same view as seen by the Spitzer Space Telescope in infrared wavelengths. EGS8p7 is the most distant galaxy […]

New Images and Scheduled Observations of Pluto as New Horizons Closes In

Pluto’s fascinating terrain and various geologic features are revealed in detail in this latest black-and-white image from NASA’s New Horizons spacecraft. The image was taken with the onboard Long Range Reconnaissance Imager, or LORRI on July 9, while New Horizons was approximately 5.4 million km away from the dwarf planet. Image Credit: NASA/JHUAPL/SWRI

With […]

The Case of the Helium-Shrouded Exoplanet With the Hydrogen, Comet-Like Tail

An artist’s concept of the vast envelope of atomic hydrogen that envelopes the nearby helium-dominated exoplanet Gliese 436b. The radiation pressure from the planet’s host star causes the gradual escape over time of significant amounts of hydrogen from Gliese 436b’s atmosphere into space, which subsequently forms a large comet-like tail that follows the planet […]

Spitzer Space Telescope Discovers Distant Exoplanet Across the Milky Way

Utilising NASA’s Spitzer Space Telescope, astronomers have discovered a distant exoplanet located 13,000 light-years away, through gravitational microlensing. The red cone in the map above our Solar System, depicts the extend in the galaxy of the thousands of known exoplanets that have been discovered by NASA’s Kepler space telescope, while the red circle represents […]

Of Warm Gas and Galaxy Mergers: Collisions Between Galaxies Can Halt Star Formation, According to New Study

A composite image of the gravitationally interacting galaxies NGC 3226 (at the top) and NGC 3227 (bottom), which clearly shows the tidally generated large structures that surround them as a result of a past collision with a third galaxy. Optical wavelengths in the image are shown in gray scale. The infrared glow of dust […]

Construction Site Ahead: Hubble Observes Planet-Forming Circumstellar Dust Disks in Great Detail

A set of high-resolution images of the vast circumstellar debris disks around 11 nearby young stars, which were obtained with the Hubble Space Telescope, have helped astronomers to study their complex and dynamic structure for the first time in great detail. This visible-light survey, called HST/GO 12228, was done with Hubble’s Space Telescope Imaging […]

Intergalactic Space Is Brighter Than Thought, NASA Rocket Experiment Shows

Time-lapse image of a Cosmic Infrared Background Experiment (CIBER) rocket launch, at NASA’s Wallops Flight Facility in Virginia in 2013. This was the fourth flight of CIBER. Image Credit: T. Arai/University of Tokyo

The universe is vast and, apart from the stars and galaxies, a seemingly very dark and empty place, with utter blackness […]