Observations by the NASA/ESA Hubble Space Telescope have come up with a new class of planet, a waterworld enshrouded by a thick, steamy atmosphere. It’s smaller than Uranus but larger than Earth. Continue reading
Scientists help define structure of exoplanets. Using models similar to those used in weapons research, scientists may soon know more about exoplanets, those objects beyond the realm of our solar system. Continue reading
In 1995, NASA’s Hubble Space Telescope took an iconic image of the Eagle nebula, dubbed the “Pillars of Creation,” highlighting its finger-like pillars where new stars are thought to be forming. Now, the Herschel Space Observatory has a new, expansive view of the region captured in longer-wavelength infrared light. Continue reading
No matter how exciting your plans are for New Year’s, two NASA spacecraft have you beat – they’ve got a date with the moon. After more than three months of spaceflight, NASA’s twin Grail probes are set to start orbiting the moon this weekend, with Grail-A arriving Saturday (Dec. 31) and Grail-B following on Sunday (Jan. 1). Continue reading
Astronomers on Tuesday (Dec. 20) announced the discovery of the first two Earth-size alien planets – a historic find for sure, but the newfound worlds didn’t exactly receive historic names. The two alien planets are officially known as Kepler-20e and Kepler-20f, a nod to the instrument that detected them, NASA’s prolific Kepler space telescope. Continue reading
The youngest planet yet discovered has been found orbiting within the disk of dust and gas surrounding the star Lk Ca 15. The planet is more than just young: it may still be in the process of formation. Continue reading
NASA’s Spitzer Space Telescope has detected signs of icy bodies raining down in an alien solar system. The downpour resembles our own solar system several billion years ago during a period known as the “Late Heavy Bombardment,” which may have brought water and other life-forming ingredients to Earth. Continue reading
As the United States settles in for the long winter ahead in American space launch capabilities, after a summer that witnessed the end of the Shuttle program, two radically different visions for the future have emerged, put forward by two equally different entities. Continue reading
ESA’s Venus Express spacecraft has discovered an ozone layer high in the atmosphere of Venus. Comparing its properties with those of the equivalent layers on Earth and Mars will help astronomers refine their searches for life on other planets. Continue reading
The retirement of the space shuttle has sparked a debate about the value of human spaceflight. Some see it as a waste of resources. Robots are better, cheaper alternatives, they say – and robotic missions don’t risk human lives. Others see the ability to fly humans into space as being tied up with national prestige, influence, and soft power. Continue reading