「あかつき」金星の軌道投入に成功　日本初の惑星探査機が5年ぶりにエンジン噴射

Hubble's 20th anniversary image shows a mountain of dust and gas rising in the Carina Nebula. The top of a three-light-year tall pillar of cool hydrogen is being worn away by the radiation of nearby stars, while stars within the pillar unleash jets of gas that stream from the peaks. Credit: NASA, ESA, and M. Livio and the Hubble 20th Anniversary Team (STScI)

Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA) Acknowledgment: W. Keel (University of Alabama, Tuscaloosa)

Credit: A. Caulet (ST-ECF, ESA) and NASA

Credit: NASA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: Dr. Raghvendra Sahai (JPL) and Dr. Arsen R. Hajian (USNO)

Credit: NASA, ESA, F. Paresce (INAF-IASF, Bologna, Italy), R. O'Connell (University of Virginia, Charlottesville), and the Wide Field Camera 3 Science Oversight Committee

Image Credit: NASA, ESA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: R. Sahai (Jet Propulsion Lab) and B. Balick (University of Washington)

Credit: NASA, Andrew Fruchter and the ERO Team [Sylvia Baggett (STScI), Richard Hook (ST-ECF), Zoltan Levay (STScI)]

Credit: NASA; ESA; Hans Van Winckel (Catholic University of Leuven, Belgium); and Martin Cohen (University of California, Berkeley)

Arp 274 is a trio of galaxies. They appear to be partially overlapping in this image, but may be located at different distances. Credit: NASA, ESA, M. Livio and the Hubble Heritage Team (STScI/AURA)

This youngest-known supernova remnant in our galaxy lies 10,000 light years away in the constellation Cassiopeia. The light from this exploding star first reached Earth in the 1600s. Image Credit: NASA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: R. Fesen (Dartmouth) and J. Morse (Univ. of Colorado)

An onionskin-like structure of concentric dust shells surround a central, aging star. Twin beams of light radiate from the star and illuminate the usually invisible dust. Artificial colors show how light reflects off the particles and heads toward Earth. Credit: NASA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: W. Sparks (STScI) and R. Sahai (JPL)

Credit: NASA, ESA, and the Hubble SM4 ERO Team

Credit: NASA, ESA, and the Hubble SM4 ERO Team

Plumes of glowing hydrogen blast from the central nucleus of M82. The pale, star-like objects are clusters of tens to hundreds of thousands of stars. Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA) Acknowledgment: J. Gallagher (University of Wisconsin), M. Mountain (STScI), and P. Puxley (National Science Foundation)

Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA) Acknowledgment: A. Nota (STScI/ESA)

A billowing tower of gas and dust rises from the stellar nursery known as the Eagle Nebula. This small piece of the Eagle Nebula is 57 trillion miles long (91.7 trillion km). Credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA)

Image Credit: NASA and The Hubble Heritage Team (STScI/AURA) Acknowledgment: Ray A. Lucas (STScI/AURA)

Credit: E.J. Schreier (STScI), and NASA

Credit: NASA and E. Karkoschka (University of Arizona)

Credit: NASA, ESA, and A. Riess (STScI/JHU)

Credit: NASA, ESA, SSC, CXC, and STScI

Image Credit: NASA, ESA, and The Hubble Heritage Team (STScI)

Credits for X-ray Image: NASA/CXC/ASU/J. Hester et al. Credits for Optical Image: NASA/HST/ASU/J. Hester et al.

Thousands of stars are forming in the cloud of gas and dust known as the Orion nebula. More than 3,000 stars of various sizes appear in this image. Some of them have never been seen in visible light. Credit: NASA,ESA, M. Robberto (Space Telescope Science Institute/ESA) and the Hubble Space Telescope Orion Treasury Project Team

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

Credit: NASA, ESA, P. Challis and R. Kirshner (Harvard-Smithsonian Center for Astrophysics)

Credit: NASA, ESA and J. Hester (ASU)

Credit: NASA, ESA, and E. Karkoschka (University of Arizona)

Credit: NASA, ESA, C.R. O'Dell (Vanderbilt University), M. Meixner and P. McCullough (STScI)

Credit: NASA and The Hubble Heritage Team (AURA/STScI)

The Cat's Eye Nebula, one of the first planetary nebulae discovered, also has one of the most complex forms known to this kind of nebula. Eleven rings, or shells, of gas make up the Cat's Eye. Credit: NASA, ESA, HEIC, and The Hubble Heritage Team (STScI/AURA) Acknowledgment: R. Corradi (Isaac Newton Group of Telescopes, Spain) and Z. Tsvetanov (NASA)

Science Credit: NASA, ESA, and B. Schaefer and A. Pagnotta (Louisiana State University, Baton Rouge) Image Credit: NASA, ESA, CXC, SAO, the Hubble Heritage Team (STScI/AURA), and J. Hughes (Rutgers University)

Bright knots of glowing gas light up the arms of spiral galaxy M74, indicating a rich environment of star formation. Messier 74, also called NGC 628, is slightly smaller than our Milky Way. Credit: NASA, ESA, and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration Acknowledgment: R. Chandar (University of Toledo) and J. Miller (University of Michigan)

Credit: H. Ford (JHU/STScI), the Faint Object Spectrograph IDT, and NASA

Credit: NASA, ESA, R. O'Connell (University of Virginia), F. Paresce (National Institute for Astrophysics, Bologna, Italy), E. Young (Universities Space Research Association/Ames Research Center), the WFC3 Science Oversight Committee, and the Hubble Heritage Team (STScI/AURA)

The Crab Nebula is a supernova remnant, all that remains of a tremendous stellar explosion. Observers in China and Japan recorded the supernova nearly 1,000 years ago, in 1054. Credit: NASA, ESA, J. Hester and A. Loll (Arizona State University)

A brilliant white core is encircled by thick dust lanes in this spiral galaxy, seen edge-on. The galaxy is 50,000 light-years across and 28 million light years from Earth. Credit: NASA and The Hubble Heritage Team (STScI/AURA)

Credit: NASA, ESA, STScI, J. Hester and P. Scowen (Arizona State University)

Credit: NASA, ESA, SAO, CXC, JPL-Caltech, and STScI Acknowledgment: J. DePasquale (Harvard-Smithsonian CfA), and B. Whitmore (STScI)

Credit: NASA, ESA, and Jonathan Nichols (University of Leicester)