Tonight’s Sky: April 2014 (by Hubble Space Telescope)
Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky.” April is a good month for eclipses. Lucky viewers will see a total lunar eclipse or a partial solar eclipse.
"Tonight’s Sky" is produced by HubbleSite.org, online home of the Hubble Space Telescope. This is a recurring show, and you can find more episodes — and other astronomy videos — at HubbleSite.org.
Visit Tonight’s Sky on HubbleSite.
Relativity Isn’t Relative (by minutephysics)
Minute Physics provides an energetic and entertaining view of old and new problems in physics — all in a minute!
Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder
Thanks to Nima Doroud for contributions.
ESOcast 64: First Ring System Around Asteroid (by Eso Observatory)
This ESOcast shows how observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger planets Jupiter, Saturn, Uranus and Neptune — to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris.
This video is available for download in various formats on: http://www.eso.org/public/videos/eso1…
Visual design and editing: Martin Kornmesser and Luis Calçada.
Editing: Herbert Zodet.
Web and technical support: Mathias André and Raquel Yumi Shida.
Written by: Ryan Laird and Richard Hook.
Presented by: Joe Liske (Dr. J).
Narration: Sara Mendes da Costa.
Music: John Stanford (johnstanfordmusic.com).
Footage and photos: ESO, Felipe Braga Ribas, Luis Calçada, Martin Kornmesser, José Francisco Salgado (josefrancisco.org), Alexandre Santerne, NASA, ESA and M. Showalter (SETI Institute).
Directed by: Herbert Zodet.
Executive producer: Lars Lindberg Christensen.
An international team of astronomers, led by Felipe Braga-Ribas (Observatório Nacional/MCTI, Rio de Janeiro, Brazil), has used telescopes at seven locations in South America, including the 1.54-metre Danish and TRAPPIST telescopes at ESO’s La Silla Observatory in Chile, to make a surprise discovery in the outer Solar System.