With about a million observations under its belt during its 25 years of service, some of the Hubble Space Telescope’s most memorable images have been of the vastness of space and the early days of the universe. These “deep-field” images actually improved over the years because shuttle astronauts were able to upgrade the observatory. This episode, entitled “The Incredible Time Machine” shows us how Hubble has been able to give us a glimpse of a cosmos in its formative years.... Read More إقرأ المزيد | Share it now!

Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” In May, the Eta Aquarid meteor shower streaks through the sky, and face-on spiral galaxy M51 makes an appearance.... Read More إقرأ المزيد | Share it now!

With images like the eXtreme Deep Field, we’ve seen how the +Hubble Space Telescope is used to observe remarkable distances in our Universe, approaching moments after the Universe ceased to be opaque. Astronomers have done it again, detecting and measuring the distance to some of the earliest objects in our Universe!... Read More إقرأ المزيد | Share it now!

Using NASA’s +Hubble Space Telescope, astronomers have captured for the first time snapshots of fledgling white dwarf stars beginning their slow-paced, 40-million-year migration from the crowded center of an ancient star cluster to the less populated suburbs.... Read More إقرأ المزيد | Share it now!

The James Webb Space Telescope has a series of mirrors to get the light from the universe into the observatory’s cameras. After the light reaches the primary mirror, it is then bounced up 25 feet to the secondary mirror. This much smaller mirror is deployed using three arms, or struts. Engineers at NASA’s Goddard Space Flight Center are conducting tests to ensure a successful deployment after launch. This episode of Behind the Webb shows us the scope of the task at hand and how the test is being done to simulate a zero-gravity environment.... Read More إقرأ المزيد | Share it now!

Observations over the past 20 years reveal high-energy collisions inside the black hole jet in NGC 3862! While it has been known that the jets from black holes are extremely energetic, shooting out particles at about 98% the speed of light, astronomers were “shocked” to see collisions occuring inside the jets themselves.... Read More إقرأ المزيد | Share it now!

Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” In June, Hercules and Draco the Dragon battle for territory in the night sky.... Read More إقرأ المزيد | Share it now!

The Weirdest Stars in the Universe
Emily Levesque, University of Colorado... Read More إقرأ المزيد | Share it now!

Surprising new results from Hubble Space Telescope observations show hitherto unknown behavior of Pluto’s moons. Astronomers have been monitoring and imaging the Pluto system at various times throughout Hubble’s mission. Many of these observations were used to support science planning for NASA’s New Horizons’ observations. ... Read More إقرأ المزيد | Share it now!