Rozkvétající hvězdná porodnice | ESO Česko
http://www.eso.org/public/czechrepublic/news/eso1740/?lang

Kamera OmegaCAM osazená na dalekohledu ESO/VST zachytila zářící hvězdnou porodnici Sharpless 29. Na záběru je zdokumentována celá řada astrofyzikálních
procesů včetně oblaků plynu a prachu, které odrážejí, absorbují a opět emitují světlo mladých horkých hvězd ukrytých v nitru mlhoviny.

Část oblohy zachycená na tomto snímku je zanesena v katalogu Sharpless (Sharpless catalogue of H II regions), který obsahuje takzvané H II oblasti:
oblaky mezihvězdného ionizovaného plynu, kde se rodí nové hvězdy. Oblast s označením SH 2-29, Sharpless 29 se nachází asi 5 500 světelných let daleko
a na obloze se promítá do souhvězdí Střelce (Sagittarius), hned vedle známé mlhoviny Laguna (Lagoon Nebula). Nalezneme zde celou řadu astronomických
zajímavostí včetně mlhoviny NGC 6559 (uprostřed snímku), ve které probíhají intenzivní procesy formování nových hvězd.

ESOcast 142 Light: Stellar Nursery Blooms into View (4K UHD)
https://www.youtube.com/watch?v=5w0cKbIREe4

https://www.icrar.org/galaxygiant/

Astronomers have used two Australian radio telescopes and several optical telescopes to study complex mechanisms
that are fuelling jets of material blasting away from a black hole 55 million times more massive than the Sun.

In research published today, the international team of scientists used the telescopes to observe a nearby radio
galaxy known as Centaurus A.

The giant radio galaxy Centaurus A
https://vimeo.com/243582320


“As the closest radio galaxy to Earth, Centaurus A is the perfect ‘cosmic laboratory’ to study the physical processes
responsible for moving material and energy away from the galaxy’s core,” said Dr Ben McKinley from the International
Centre for Radio Astronomy Research (ICRAR) and Curtin University in Perth, Western Australia.

Centaurus A is 12 million light-years away from Earth—just down the road in astronomical terms—and is a popular target
for amateur and professional astronomers in the Southern Hemisphere due to its size, elegant dust lanes, and prominent
plumes of material.

Petr Kulhánek - Velké astronomické objevy za Velkou louží... (FČ FEL ČVUT 23.11.2017)
https://www.youtube.com/watch?v=knZp8gCTw40

Astronomers to Check Mysterious Interstellar Object for Signs of Technology - The Atlantic
https://www.theatlantic.com/...ce/archive/2017/12/yuri-milner-oumuamua-interstellar-asteroid/547985/

Russian billionaire Yuri Milner says if the space rock 'Oumuamua is giving off radio signals, his team
will be able to detect them—and they may get the results within days.

ESO to Build ELT With Full Primary Mirror | ESO Česko
http://www.eso.org/public/czechrepublic/announcements/ann17085/

ESO’s governing body, the Council, has just authorised additional spending to cover the cost of both the five inner rings of segments
for the main mirror (M1) of the Extremely Large Telescope (ELT), and one spare set of 133 mirror segments (one sixth of the total M1),
and also an additional mirror segment maintenance unit. The decision was made at the recent meeting of the Council in Garching, Germany,
after the positive recommendation by the ESO Finance Committee and made possible by an improved funding scenario.

Galaxy Orbits in the Local Supercluster
http://www.ifa.hawaii.edu/info/press-releases/galaxy_orbits/

A team of astronomers from Maryland, Hawaii, Israel, and France has produced the most detailed map ever of the orbits of galaxies in
our extended local neighborhood, showing the past motions of almost 1400 galaxies within 100 million light years of the Milky Way.

The team reconstructed the galaxies' motions from 13 billion years in the past to the present day. The main gravitational attractor
in the mapped area is the Virgo Cluster, with 600 trillion times the mass of the Sun, 50 million light years from us. Over a thousand
galaxies have already fallen into the Virgo Cluster, while in the future all galaxies that are currently within 40 million light years
of the cluster will be captured. Our Milky Way galaxy lies just outside this capture zone. However the Milky Way and Andromeda galaxies,
each with 2 trillion times the mass of the Sun, are destined to collide and merge in 5 billion years.

2017 Nobel Lectures in Physics
https://www.youtube.com/watch?v=scVyxVnMYUc

The PI’s Perspective: Wrapping up 2017 En Route to Our Next Flyby – Pluto New Horizons
https://blogs.nasa.gov/...017/12/06/the-pis-perspective-wrapping-up-2017-en-route-to-our-next-flyby/

New Horizons is in good health and cruising closer each day to its next encounter: a flyby of the Kuiper Belt object (KBO) 2014 MU69 (or “MU69” for short).
If you follow our mission, you likely know that flyby will occur on New Year’s Eve and New Year’s Day 2019, which is just barely over a year from now!

As I write this, New Horizons is wrapping up an active period that began when the spacecraft emerged from hibernation mode in September. But soon, on Dec. 21,
we’ll put the spacecraft back in hibernation, where it will remain until June 4, 2018. After June 4 the spacecraft will stay “awake” until late in 2020, long
after the MU69 flyby, when all of the data from that flyby have reached Earth.

But before we put New Horizons into hibernation this month, we have some important work ahead. We’ll observe five more KBOs with the onboard LORRI telescope/
imager to learn about their surface properties, satellite systems and rotation periods. This work is part of a larger set of observations of 25-35 Kuiper Belt
objects from 2016 to 2020 on this extended mission. Learning about these KBOs from close range and at angles that we cannot observe from Earth makes will give
us key context for the more detailed studies we’ll make of MU69 from a thousand times closer than we can study any other KBO. In addition to that LORRI imaging
of these objects, we’re continuing our nearly round-the-clock observations of the charged particle and dust environment of the Kuiper Belt—both before and while
New Horizons hibernates.

Also right ahead is a 2.5-minute engine burn planned for Dec. 9 (yes, a Saturday). This maneuver will both refine our course and optimize our flyby arrival time
at MU69, by setting closest approach to 5:33 Universal Time (12:33 a.m. Eastern Standard Time) on Jan. 1, 2019. Flying by at that time provides better visibility
by the antennas of NASA’s Deep Space Network, which will attempt to reflect radar waves off the surface of MU69 for New Horizons to receive. If it succeeds, that
difficult experiment will help us determine the surface reflectivity and roughness of MU69 at radar wavelengths—something that has been successfully applied to
study asteroids, comets, planetary satellites and even some planets, including Pluto, which New Horizons observed the same way in 2015.

Jupí!! Roste do krásy.

https://twitter.com/mjuric/status/938445343078850560

Poetická Labuť za svítání
(Ne že bych musel pastovat každý nosič či modul, někdy je to ale skutečná nádhera.)

Discovery about rare nitrogen molecules offers clues to makeup of other life-supporting planets | UCLA
http://newsroom.ucla.edu/...trogen-molecules-offers-clues-to-makeup-of-other-life-supporting-planets

team of scientists using a state-of-the-art UCLA instrument reports the discovery of a planetary-scale “tug-of-war” of life,
deep Earth and the upper atmosphere that is expressed in atmospheric nitrogen.

The Earth’s atmosphere differs from the atmospheres of most other rocky planets and moons in our solar system in that it is rich
in nitrogen gas, or N2; the Earth’s atmosphere is 78 percent nitrogen gas. Titan, the largest of Saturn’s more than 60 moons, is
the other body in our solar system with a nitrogen-rich atmosphere that resembles ours.

Compared with other key elements of life — such as oxygen, hydrogen and carbon — molecular nitrogen is very stable. Two nitrogen
atoms combine to form N2 molecules that stay in the atmosphere for millions of years.

The majority of nitrogen has an atomic mass of 14. Less than one percent of nitrogen has an extra neutron. While this heavy isotope,
nitrogen-15, is rare, N2 molecules that contain two nitrogen-15s — which chemists call 15N15N — are the rarest of all N2 molecules.

The team of scientists measured the amount of 15N15N in air and discovered that this rare form of nitrogen gas is far more abundant
than scientists had expected. The Earth’s atmosphere contains about two percent more 15N15N than can be accounted for by geochemical
processes occurring near the Earth’s surface.

“This excess was not known before because nobody could measure it,” said senior author Edward Young, a UCLA professor of geochemistry
and cosmochemistry. “Our one-of-a-kind Panorama mass spectrometer allows us to see this for the first time. We conducted experiments
showing that the only way for this excess of 15N15N to occur is by rare reactions in the upper atmosphere. Two percent is a huge excess.”

Young said the enrichment of 15N15N in Earth’s atmosphere is a signature that’s unique to our planet. “But it also gives us a clue about
what signatures of other planets might look like, especially if they are capable of supporting life as we know it.”

Scientists observe supermassive black hole in infant universe | MIT News
http://news.mit.edu/2017/scientists-observe-supermassive-black-hole-infant-universe-1206

A team of astronomers, including two from MIT, has detected the most distant supermassive black hole ever observed.
The black hole sits in the center of an ultrabright quasar, the light of which was emitted just 690 million years
after the Big Bang. That light has taken about 13 billion years to reach us — a span of time that is nearly equal
to the age of the universe.

The black hole is measured to be about 800 million times as massive as our sun — a Goliath by modern-day standards
and a relative anomaly in the early universe.