VIRGO:
HubbleSite: News - Gravitational Wave Kicks Monster Black Hole Out Of Galactic Core
http://hubblesite.org/news_release/news/2017-12

Runaway black hole is the most massive ever detected far from its central home

Normally, hefty black holes anchor the centers of galaxies. So researchers were surprised to discover a supermassive black hole
speeding through the galactic suburbs. Black holes cannot be observed directly, but they are the energy source at the heart of
quasars — intense, compact gushers of radiation that can outshine an entire galaxy. NASA's Hubble Space Telescope made
the discovery by finding a bright quasar located far from the center of the host galaxy.

Researchers estimate that it took the equivalent energy of 100 million supernovas exploding simultaneously to jettison the black
hole. What could pry this giant monster from its central home? The most plausible explanation for this propulsive energy is that
the monster object was given a kick by gravitational waves unleashed by the merger of two black holes as a result of a collision
between two galaxies. First predicted by Albert Einstein, gravitational waves are ripples in the fabric of space that are created
when two massive objects collide.

VIRGO: Moc milá pocta a vzpomínka! :)

Hear NASA's 'Golden Record' From 1977 Voyager Mission - Rolling Stone
http://www.rollingstone.com/music/news/hear-nasas-golden-record-from-1977-voyager-mission-20151007

Jéé, táta Šesták! :) Dnešní noc bude víc nabouchaná než klasický pátek (díky Karolíně Pórkové)...

Toník Darnellů, čerstvý a svěží! Ještě pravidelné rande v SETI inštitůtu, a čtvrteční večer je komplet.. )
Water on the Exoplanet 51 Pegasi b!
https://www.youtube.com/watch?v=X6v60Ru7tRY

Hubble Detects a Rogue Supermassive Black Hole
https://www.youtube.com/watch?v=K09zNxtJ11s

Astronomers find unexpected, dust-obscured star formation in distant galaxy
https://phys.org/news/2017-03-astronomers-unexpected-dust-obscured-star-formation.html

Pushing the limits of the largest single-aperture millimeter telescope in the world, and coupling it with gravitational lensing,
University of Massachusetts Amherst astronomer Alexandra Pope and colleagues report that they have detected a surprising rate of
star formation, four times higher than previously detected, in a dust-obscured galaxy behind a Frontier Fields cluster.

As Pope explains, "This very distant, relatively typical galaxy is known to us, and we knew it was forming stars, but we had no idea
what its real star-formation rate was because there is so much dust surrounding it. Previous observations couldn't reach past that.
Finding out that 75 percent of its star formation was obscured by dust is remarkable and intriguing. These observations clearly show
that we have more to learn."

She adds, "Historians want to know how civilizations were built up, and we astronomers want to know where and how the elements in the
universe were formed and where everything is made of, came from." The study is accepted for publication in The Astrophysical Journal.

The new tool that has made such revelations possible is the 50-meter Large Millimeter Telescope (LMT) which has been observing as
a 32-meter telescope located on an extinct volcano in central Mexico in "early science mode" since 2013. Operated jointly by UMass
Amherst and Mexico's Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE), it offers astonishing new power to peer into
dusty galaxies, the astrophysicist says.

Is Dark Energy a Galaxy Killer?
http://nautil.us/issue/46/balance/can-dark-energy-kill-galaxies

The surprising importance of a dark-energy selection effect.

Astronomers study a rare multi-eclipsing quintet of stars
https://phys.org/news/2017-03-astronomers-rare-multi-eclipsing-quintet-stars.html

A team of astronomers led by Krzysztof Hełminiak of the Nicolaus Copernicus Astronomical Center in Toruń, Poland, has investigated
an interesting bright quintuple stellar system in which each of the stars is eclipsed. The quintet, designated KIC 4150611 (also
known as HD 181469), given its peculiar pulsations, eclipses, and high-order multiplicity, could provide important information on
evolution and structure of multiple-star systems. The new research was published Mar. 2 in a paper on arXiv.org.

KIC 4150611 is a quintuple star system that was initially identified as a visual binary star in 2001. However, the object's first
position measurement dates back to 1831. The eclipses in the system were first noted in 2011 in the Kepler Eclipsing Binaries Catalog
(KEBC). Shortly after, it was found that KIC 4150611 contains a hybrid delta Scuti (δ Sct)/gamma Doradus (γ Dor) pulsator. In 2015,
a spectral analysis of this pulsator was performed and its atmospheric parameters were obtained, showing that it is a rapidly-rotating
star of spectral type F1 V mA9.

Formation of TRAPPIST-1 and other compact systems
https://arxiv.org/abs/1703.06924

http://physicstoday.scitation.org/doi/full/10.1063/PT.3.3504

A very ordinary, isolated star varies by 20% in brightness on time scales from a day to a century. No one has yet proposed a convincing explanation.

The star KIC 8462852 is reasonably advertised as the most mysterious star in our galaxy. It is by almost all measures a perfectly ordinary F2 main-sequence star,
which is to say that it is middle-aged and stable. At a temperature of 6750 K, it’s a bit hotter than our sun, and at 1.43 solar masses, it’s a bit more massive too.
Until 2015 the star was unnoticed in the wing of the constellation Cygnus (the Swan), though at a distance of about 1500 light-years and an optical magnitude of
about 12, the star is visible with a small telescope. When it was noticed, it created quite a splash.

Mars rover spots clouds shaped by gravity waves | Science | AAAS
http://www.sciencemag.org/news/2017/03/mars-rover-spots-clouds-shaped-gravity-waves

While driving across the Naukluft plateau, a gnarly terrain riven with rock shards,
last summer, Curiosity captured these early morning clouds.

K-Cor promises earlier space weather warnings
https://watchers.news/2017/03/23/k-cor-promises-earlier-space-weather-warnings/

A new research instrument located on the Mauna Loa volcano in Hawaii - K-Coronagraph - showed the technique it uses to observe Sun's corona
can be used to provide earlier warnings to astronauts when dangerous high-energy particles are blasted out of the Sun's corona. Although K-Cor,
as ground-based instrument, has its drawbacks, NCAR team who built it proved that agencies could deploy a single space-based coronagraph and
use the technology to provide early warnings. The additional time could help protect astronauts, satellites.

The K-Coronagraph or K-Cor, owned and operated by the National Center for Atmospheric Research (NCAR), could flag dangerous high-energy particles
blasted out of the Sun's corona nearly 20 minutes faster than coronagraphs based in space, according to a new, NASA-led study. Coronagraphs use
a disk to block the blinding light of the Sun's face in order to create an artificial solar eclipse, enabling scientists to study the very dim
solar atmosphere known as the corona.

Andromeda's Bright X-Ray Mystery Solved by NuSTAR
https://www.nasa.gov/feature/jpl/andromedas-bright-x-ray-mystery-solved-by-nustar

The Milky Way's closest neighbor, Andromeda, features a dominant source of high-energy X-ray emission, but its identity was mysterious until now. As
reported in a new study, NASA's NuSTAR (Nuclear Spectroscopic Telescope Array) mission has pinpointed an object responsible for this high-energy radiation.

The object, called Swift J0042.6+4112, is a possible pulsar, the dense remnant of a dead star that is highly magnetized and spinning, researchers say. This
interpretation is based on its emission in high-energy X-rays, which NuSTAR is uniquely capable of measuring. The object’s spectrum is very similar to known
pulsars in the Milky Way. It is likely in a binary system, in which material from a stellar companion gets pulled onto the pulsar, spewing high-energy
radiation as the material heats up. http://photojournal.jpl.nasa.gov/catalog/PIA20970

3-D Fly-Through of Cassiopeia A (No Audio)
https://www.youtube.com/watch?v=5yRB0LYRhSY


3-D Visualization of Cassiopeia A
https://www.youtube.com/watch?v=7Gxi_NqkQyw

New Study Maps Space Dust in 3-D | Berkeley Lab
https://newscenter.lbl.gov/2017/03/22/new-study-maps-space-dust-in-3-d/

A new study led by Edward F. Schlafly, a Hubble Fellow in the Physics Division at the Department of Energy’s Lawrence
Berkeley National Laboratory (Berkeley Lab), is providing a detailed, 3-D look at dust on a scale spanning thousands
of light-years in our Milky Way galaxy. The study was published today in The Astrophysical Journal.

This dust map is of critical importance for the Dark Energy Spectroscopic Instrument (DESI), a Berkeley Lab-led project
that will measure the universe’s accelerating expansion rate when it starts up in 2019. DESI will build a map of more
than 30 million distant galaxies, but that map will be distorted if this dust is ignored.

A Tour of the Milky Way and 3-D rendering of space dust
https://www.youtube.com/watch?v=LjwsYh5_zpQ

Very large blue fireball illuminates sky over Sweden
https://watchers.news/2017/03/21/large-blue-meteor-fireball-over-sweden-march-20-2017/

A very large blue fireball illuminated the sky over Sweden around 20:30 UTC (21:30 CET) on March 20, 2017.
The event was so powerful that the whole sky lit up, Swedish All Sky Meteor Network astronomers said.

bolid 2017-03-20-21-30
https://www.youtube.com/watch?v=Qljxs-aIdgo

Universe’s ultraviolet background could provide clues about missing galaxies - Durham University
https://www.dur.ac.uk/news/newsitem/?itemno=30902

Astronomers have developed a way to detect the ultraviolet (UV) background of the Universe,
which could help explain why there are so few small galaxies in the cosmos.

UV radiation is invisible but shows up as visible red light when it interacts with gas.

An international team of researchers led by Durham University, UK, has now found a way to
measure it using instruments on Earth.

The researchers said their method can be used to measure the evolution of the UV background
through cosmic time, mapping how and when it suppresses the formation of small galaxies.

The study could also help produce more accurate computer simulations of the evolution of the Universe.

Effects of UV radiation on galaxy formation
https://www.youtube.com/watch?v=bPxUKuB5_zY