Showing 1 - 3 of 3 Records
A New Angle on Two Spiral Galaxies for Hubble's 27th Birthday
- In celebration of the 27th anniversary of the launch of NASA's Hubble Space Telescope on April 24, 1990, astronomers used the legendary telescope to take a portrait of a stunning pair of spiral galaxies. This starry pair offers a glimpse of what our Milky Way galaxy would look like to an outside observer.The edge-on galaxy is called NGC 4302, and the tilted galaxy is NGC 4298. These galaxies look quite different because we see them angled at different positions on the sky. They are actually very similar in terms of their structure and contents.From our view on Earth, researchers report an inclination of 90 degrees for NGC 4302, which is exactly edge on. NGC 4298 is tilted 70 degrees.In NGC 4298, the telltale, pinwheel-like structure is visible, but it's not as prominent as in some other spiral galaxies. In the edge-on NGC 4302, dust in the disk is silhouetted against rich lanes of stars. Absorption by dust makes the galaxy appear darker and redder than its companion. A large blue patch appears to be a giant region of recent star formation.
- Author: William Herschel
SDO- Year 6
- This image, is a composite of 23 separate images spanning the period of January 11, 2015 to January 21, 2016. It uses the SDO AIA wavelength of 171 angstroms and reveals the zones on the sun where active regions are most common during this part of the solar cycle.
City Lights 2012 - Flat map
- Composite view of Earth at night from the Suomi NPP satellite in polar orbit 512 miles above the surface, from April 18, over nine days and for 13 days ending October 23, 2012. בהוד
- Author: NASA Earth Observatory