ScienceDaily: Astronomy News |
- Rare stellar alignment offers opportunity to hunt for planets
- Best ultraviolet maps of the nearest galaxies
- Solar system's Milky Way neighborhood gets more respect
- Cosmic rays: Galactic knee and extragalactic ankle
- Lightest exoplanet to be directly observed so far? Faint object moves near bright star
| Rare stellar alignment offers opportunity to hunt for planets Posted: 03 Jun 2013 03:32 PM PDT NASA's Hubble Space Telescope will have two opportunities in the next few years to hunt for Earth-sized planets around the red dwarf Proxima Centauri. The opportunities will occur in October 2014 and February 2016 when Proxima Centauri, the star nearest to our sun, passes in front of two other stars. |
| Best ultraviolet maps of the nearest galaxies Posted: 03 Jun 2013 03:32 PM PDT Astronomers have used NASA's Swift satellite to create the most detailed ultraviolet light surveys ever of the Large and Small Magellanic Clouds, the two closest major galaxies. |
| Solar system's Milky Way neighborhood gets more respect Posted: 03 Jun 2013 01:36 PM PDT Our Solar System's Milky Way neighborhood just went upscale. We reside between two major spiral arms of our home galaxy, in a structure called the Local Arm. New research indicates that the Local Arm, previously thought to be only a small spur, instead is much more like the adjacent major arms, and is likely a significant branch of one of them. |
| Cosmic rays: Galactic knee and extragalactic ankle Posted: 03 Jun 2013 08:33 AM PDT A new experiment has yielded the important result that a characteristic bend in the energy spectrum of high-energy cosmic rays, also called "knee", is located at different energies for light and heavy primary particles. Astronomers have found that these cosmic radiation particles are accelerated in galaxies other than the Milky Way. |
| Lightest exoplanet to be directly observed so far? Faint object moves near bright star Posted: 03 Jun 2013 06:17 AM PDT A team of astronomers using the European Southern Observatory's Very Large Telescope has imaged a faint object moving near a bright star. With an estimated mass of four to five times that of Jupiter, it would be the least massive planet to be directly observed outside the Solar System. The discovery is an important contribution to our understanding of the formation and evolution of planetary systems. |
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