Hubble's Universe Unfiltered

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    Martian Encounter

    While Comet ISON may or may not develop into a spectacular sight from Earth, it most certainly will provide some intriguing observations from Mars.

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    The Edge of Space

    The edge of interstellar space and the borderline of the solar system sound like the same thing, but they are widely separated boundaries.

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    A Most Curious Solar Eclipse

    Solar eclipses are, in general, really cool events. But when NASA captures a solar eclipse from Mars, that's in the realm of awesomely amazing.

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    Episode 20: A Horse of a Different Color

    For Hubble's 23rd anniversary, we released a gorgeous new view of the Horsehead Nebula using infrared light. This episode explores not only the scientific story behind the image, but also the process of creating a three-dimensional model and flight into the glowing gaseous landscape of the nebula.

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    What fills the empty space between galaxies?

    What fills the space between galaxies? While it is "mostly" empty, the full answer involves an understanding of dark matter's dominant role in gravity and the cosmic web structure of the universe.

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    How do you think the Hubble Space Telescope affects the world today?

    For professional astronomy, Hubble is one of the premier facilities for research. Its science impact is immense. However, astronomy is not a science with immediate societal benefit. Our discoveries do not directly change daily life, though our work has had numerous long-term benefits.

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    Episode 19: Planet Discoveries Revisited

    Three direct detections of planets around other stars are revisited, providing confirmation, archival data, and spirited debate.

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    No Vacancy for Vulcans at Pluto

    Two moons of Pluto/Charon discovered by Hubble in 2011 and 2012, previously designated P4 and P5, have been given the official names of Kerberos and Styx. The internet-favorite name, Vulcan, was not chosen because it has already been used in astronomy as the name of a hypothetical planet between Mercury and the Sun.

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    Episode 18: The Future of Space Astronomy

    The future of space astronomy is a telescope that combines the exquisite resolution of Hubble with the infrared wavelengths of Spitzer. The James Webb Space Telescope will launch in 2018 and push back the frontiers of astronomy.

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    The Power of APOD

    When one of my old visualizations was featured on Astronomy Picture of the Day, I was pleased and bemused to revisit it through the eyes of those seeing it anew. It also showed how viral APOD's reach can be, in the vast number of YouTube hits in one day.

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    Will Hubble Observe the Recent Gamma-Ray Burst?

    Quickly after its discovery, gamma-ray burst GRB 130427A has been observed by a multitude of telescopes. The Hubble Space Telescope is sometimes employed to follow-up astronomical discoveries, but only when Hubble provides a clear science advantage over other telescopes.

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    A Horse of a Different Color

    Although it appears as a dark cloud in optical light, the Horsehead Nebula transforms to a glowing landscape when seen in infrared light.

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    Which is the biggest star out there, if biggest means the greatest radius?

    The stars with the biggest radii are generally considered to be red supergiant stars.

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    Episode 17: Crash of the Titans

    Crash of the Titans: Our Milky Way Galaxy will encounter the neighboring Andromeda Galaxy in about 4 billion years. Hubble measurements have shown it will be a head-on crash.

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    Tour Guide to the Universe

    Discussing astronomy discoveries with the public can be much more effective with the proper astronomical presentation software.

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    Students of the Future

    The JWST STEM Innovation Project engages students' creative and artistic energies in exploring the science and technology behind NASA's next Great Observatory.

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    Even Space Telescopes are Bigger in Texas

    The full-scale model of the James Webb Space Telescope is on display in Austin, Texas, and we're there to showcase the technology and the science of the mission.

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    Episode 16: Deep Universe

    In order to observe the most distant objects in the universe, one needs two things: very fine resolution and very long exposures. Hubble has done a few deep images looking across the universe — unveiling some dramatic findings. To call these observations mind-bending is an understatement.

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    Episode 15: Changing Views of Pluto

    While it may seem that the astronomy community's views on Pluto changed radically with its reclassification in 2006, the truth is that our understanding of Pluto has always been shifting. We now comprehend Pluto's place within the solar system, and the exploration of that region has really just begun.

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    Episode 14: A Runaway Star

    When a survey of a star-forming region found a star 90 times as massive as the Sun, located hundreds of light-years from its home, and speeding by at a quarter of a million miles per hour — well, that's a surprise that's worth investigating a bit further.