Astronomers using observations from NASA’s Hubble Space Telescope and +NASA’s Chandra X-ray Observatory  have found that dark matter interacts with itself even less than previously thought by researchers. This finding narrows down the options for what this mysterious substance might be.

By finding that dark matter interacts with itself even less than previously thought, the team has successfully narrowed down the properties of dark matter. Particle physics theorists have to keep looking, but they now have a smaller set of unknowns to work with when building their models.

Please join +Tony Darnell Dr.+Carol Christian  and +Scott Lewis  as they discuss these amazing observations with the team that made them along with special guest Dr.+Katie Mack 

Ode to Hubble Contest Voting is still going on, cast your vote here!
http://spacetelescope.org/announcements/ann1505/

Quarterfinals for #HubbleMania also going on:
http://hubble25th.org/go/HubbleMania

NASA’s One Year Crew:
http://www.nasa.gov/oneyear/

“What is our place in the Universe?” Throughout human history, astronomy has repeatedly overthrown our understanding of this question and new telescopes and astronomers continue to do so. Join Jason Kalirai of the Space Telescope Science Institute as he explores 6,000 years of human astronomy, showcases the biggest discoveries of the Hubble Space Telescope, including some of his own work, and ponders current mysteries of the Universe that may be unlocked by NASA’s next flagship telescopes.

Join Hubble astronomers for an online exploration of the remarkable history and still-bright future of a telescope that has transformed both the way we do astronomy and our understanding of the universe. Discover the trials and triumphs of NASA’s first Great Observatory, learn about some of its remarkable scientific achievements, and experience a compendium of some of the greatest imagery the universe has ever known. Our featured speaker is Dr. +Frank Summers, outreach astronomer at the Space Telescope Science Institute.

For more information about the Hubble National Teach-In, including how to be part of the Nationwide Galaxy Count, visit: http://hubble25th.org/go/Teach-In

Most galaxies have at their cores a supermassive black hole hundreds of millions of times the mass of our Sun.  They emit powerful ultraviolet radiation from the  supermassive black hole at the core of the host galaxy.

The most active of these galaxy cores are called quasars, where infalling material is heated to a point where a brilliant searchlight shines into deep space. The beam is produced by a disk of glowing, superheated gas encircling the black hole.

Please join +Tony Darnell Dr.+Carol Christian and +Scott Lewis as they discuss some fascinating new observations of quasars made by the Hubble Space Telescope

Read more here:
http://hubblesite.org/newscenter/archive/releases/2015/13/

http://hubble25th.org

#Hubble25 featured in Spaceport magazine:

Latest episode of Hubblecast, Hubble meets JWST:

#Hubble25

The James Webb Space Telescope is comprised of some very large structures, and those have to fit together before, during, and after launch. Extreme care has to be taken when moving equipment that weighs thousands of pounds. This episode of Behind the Webb gives us a glimpse into what it takes to test the compatibility between the backplane that will hold the primary mirror segments, the sunshield, and the spacecraft bus. We also see how the sunshield will be pulled into position, giving us a sense of how large the observatory will be when it’s in orbit.

The 21-foot-wide primary mirror of the Webb Telescope is so large that it will have to fold up to fit into a rocket and be launched to space. Join host Mary Estacion as she travels to ATK in Magna, Utah, where the mirror’s foldable backplane “wings” have been constructed.

“Behind the Webb” is an ongoing series that follows the construction of the Webb Space Telescope, Hubble’s successor. Find more episodes at Hubblesite.org.

“Behind the Webb” archive:
http://webbtelescope.org/webb_telescope/behind_the_webb/archive/

With an eye toward the future, the Space Telescope Science Institute celebrates the extraordinary impact that the Hubble Space Telescope has had on science, culture, and society. Because of its versatility, Hubble has made seminal contributions to almost every branch of astronomy. In this news media telelconference, speakers discuss select scientific topics in which Hubble has accomplished breakthroughs, from the studies of our own solar system to the deepest views of the distant universe. Presenters also look at the anticipated overlap between Hubble and the upcoming James Webb Space Telescope, and Hubble’s contribution to the next generation of large optical/UV telescopes in space.

Star Lores: Hubble’s 25-Year News Odyssey
Ray Villard, Space Telescope Science Institute

A well-known maxim in the media states that “if it bleeds, it leads.” Such viewpoints make it all the more surprising that a scientific instrument, the Hubble Space Telescope, has garnered such high-profile, long-lasting, and positive attention across a wide swath of public journalism. Ray Villard has been the head of the Hubble news team at STScI since before its launch, 25 years ago this month. His experience dealing with the complete swath of Hubble’s history, science, problems, and triumphs gives him an unmatched perspective. Join him for an insider’s insight, a remarkable retrospective, and a celebration of the silver anniversary of the telescope he helped make famous.

Hosted by Dr. Frank Summers. Recorded live on April 7, 2015 at the Space Telescope Science Institute in Baltimore, MD, USA

For more information: http://hubblesite.org/about_us/public_talks/

Star formation and evolution in galaxies like our Milky Way have distinct characteristics that are only now being surveyed and understood.  With help from the Hubble Space Telescope, astronomers are beginning to get more information to help them fill in pieces of the puzzle.

Please join +Tony Darnell Dr.+Carol Christian and +Scott Lewis as they discuss some of the latest results of a survey recently completed by Hubble that sheds more light on what we know about stellar evolution in galaxies like ours.

Read more here:
http://hubblesite.org/newscenter/archive/releases/2015/2015/11/

Finalists for the #OdeToHubble video contest are out!
http://www.spacetelescope.org/Hubble25/odetohubble/

#Hubble25 #astronomy #cosmology #galaxies

NASA’s Hubble Space Telescope is one of the most powerful scientific instruments ever conceived. Hubble’s most important discoveries have provided answers to questions that astronomers did not yet know how to ask, and found objects that were not yet imagined. This installment of the “Hubble at 25” series looks at how Hubble far exceeds its original science goals and unveiled an even more complex and mysterious universe than once envisioned.