HOWKING: Má příští týden narozky.

Hawking presents new idea on how information could escape black holes
https://www.youtube.com/watch?v=DkRDmJpthXg

Jiří Podolský - Einsteinovy gravitační vlny (MFF-PMF 15.12.2016)
https://www.youtube.com/watch?v=WWRRizAw2K8


http://utf.mff.cuni.cz/popularizace/prezentacePMF2016/Einsteinovy_gravitacni_vlny.pdf

Grande meteoro - Fireball visible from Campina Grande, Paraíba - Jan 06, 2017
https://www.youtube.com/watch?v=vKYFsGTtKlY&feature=youtu.be

Páteční momentka levého Navcamu:

Our Galaxy's Black Hole is Spewing Out Planet-size "Spitballs"2017-01 | www.cfa.harvard.edu/
https://www.cfa.harvard.edu/news/2017-01

Every few thousand years, an unlucky star wanders too close to the black hole at the center of the Milky Way.
The black hole's powerful gravity rips the star apart, sending a long streamer of gas whipping outward. That
would seem to be the end of the story, but it's not. New research shows that not only can the gas gather itself
into planet-size objects, but those objects then are flung throughout the galaxy in a game of cosmic "spitball."

Johns Hopkins APL Provides Key Instruments for NASA's New Discovery Missions
http://www.jhuapl.edu/newscenter/pressreleases/2017/170106.asp

Scientists and engineers at the Johns Hopkins University Applied Physics Laboratory will provide instruments on NASA’s two newest missions, Lucy and Psyche,
which will explore, respectively, six of Jupiter’s Trojan asteroids and 16 Psyche, a rare and primarily metal asteroid in the main asteroid belt between Mars and Jupiter.

Both Discovery-class missions were selected to explore these relics from the earliest history of the solar system, less than 10 million years after the birth of our sun.
APL will provide the “eagle eyes” for Lucy by developing a high-resolution telescopic camera for the mission, which will perform the first reconnaissance of the Trojans,
a population of primitive asteroids orbiting in tandem with Jupiter.

VIRGO: Revised astrobiology periodic table by Charles Cockell reporting the astrophysical source & the biological use of each element.

Hubble Detects ‘Exocomets’ Taking the Plunge Into a Young Star
https://www.nasa.gov/...re/goddard/2017/hubble-detects-exocomets-taking-the-plunge-into-a-young-star

HD 172555 represents the third extrasolar system where astronomers have detected doomed, wayward comets.
All of the systems are young, under 40 million years old.

The presence of these doomed comets provides circumstantial evidence for “gravitational stirring” by an unseen Jupiter-size planet,
where comets deflected by its gravity are catapulted into the star. These events also provide new insights into the past and present
activity of comets in our solar system. It’s a mechanism where infalling comets could have transported water to Earth and the other
inner planets of our solar system.

Space Images | Earth and Its Moon, as Seen From Mars
http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA21260

This composite image of Earth and its moon, as seen from Mars, combines the best Earth image with the best moon image from four sets
of images acquired on Nov. 20, 2016, by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.

Each was separately processed prior to combining them so that the moon is bright enough to see. The moon is much darker than Earth and would barely
be visible at the same brightness scale as Earth. The combined view retains the correct sizes and positions of the two bodies relative to each other.

HiRISE takes images in three wavelength bands: infrared, red, and blue-green. These are displayed here as red, green, and blue, respectively. This is
similar to Landsat images in which vegetation appears red. The reddish feature in the middle of the Earth image is Australia. Southeast Asia appears
as the reddish area (due to vegetation) near the top; Antarctica is the bright blob at bottom-left. Other bright areas are clouds. These images were
acquired for calibration of HiRISE data, since the spectral reflectance of the Moon's near side is very well known. When the component images were
taken, Mars was about 127 million miles (205 million kilometers) from Earth.

News | The Case of the 'Missing Link' Neutron Star
http://www.jpl.nasa.gov/news/news.php?release=2017-003

Like anthropologists piecing together the human family tree, astronomers have found that a misfit "skeleton" of a star may link two different kinds
of stellar remains. The mysterious object, called PSR J1119-6127, has been caught behaving like two distinct objects - a radio pulsar and a magnetar -
and could be important to understanding their evolution.

A radio pulsar is type of a neutron star -- the extremely dense remnant of an exploded star -- that emits radio waves in predictable pulses due to
its fast rotation. Magnetars, by contrast, are rabble rousers: They have violent, high-energy outbursts of X-ray and gamma ray light, and their
magnetic fields are the strongest known in the universe.

"This neutron star wears two different hats," said Walid Majid, astrophysicist at NASA's Jet Propulsion Laboratory, Pasadena, California. "Sometimes
it's a pulsar. Sometimes it's a magnetar. This object may tell us something about the underlying mechanism of pulsars in general."