The Curiosity of Martian Mud Cracks
https://www.youtube.com/watch?v=eYIHTVeGQcg

Planets With Elliptical Orbits May Be More Habitable Than We Thought | Inverse
https://www.inverse.com/...le/28191-planets-elliptical-orbits-colder-habitable-extraterrestrial-life

Turns out there might actually be more planets out there that could potentially support
extraterrestrial life, precisely because these planets aren’t as hot as scientists thought.

Why are there different “flavors” of iron around the Solar System? | Carnegie Institution for Science
https://carnegiescience.edu/node/2146

New work from Carnegie’s Stephen Elardo and Anat Shahar shows that interactions between iron and nickel under the extreme pressures
and temperatures similar to a planetary interior can help scientists understand the period in our Solar System’s youth when planets
were forming and their cores were created. Their findings are published by Nature Geoscience.

Earth and other rocky planets formed as the matter surrounding our young Sun slowly accreted. At some point in Earth’s earliest years,
its core formed through a process called differentiation—when the denser materials, like iron, sunk inward toward the center. This
formed the layered composition the planet has today, with an iron core and a silicate upper mantle and crust.

Scientists can’t take samples of the planets’ cores. But they can study iron chemistry to help understand the differences between
Earth’s differentiation event and how the process likely worked on other planets and asteroids.

Most Planets Are Colder Than Thought | News | Astrobiology
https://astrobiology.nasa.gov/news/most-planets-are-colder-than-thought/
There Might be More Planets in the Habitable Zone

A common assumption in the search for habitable abodes beyond Earth is that the average temperature of planets always increases the more elliptical their orbit is.
Now, scientists from the Planetary Habitability Laboratory (PHL) and the Arecibo Observatory in Puerto Rico have shown that planets in elliptical orbits are generally
colder than previously believed.

Planets can move around their parent star in orbits that are not perfectly circular. These elliptical orbits put planets sometimes significantly closer or farther
from their star, thus contributing to extreme temperature changes. This is not the case of Earth, and probably for the exoplanets orbiting the stars Proxima Centauri
or TRAPPIST-1, but true for many known planets around other stars.

From rocks in Colorado, evidence of a 'chaotic solar system' - Astrobiology Magazine
http://www.astrobio.net/also-in-news/rocks-colorado-evidence-chaotic-solar-system/

Plumbing a 90 million-year-old layer cake of sedimentary rock in Colorado, a team of scientists from the University of Wisconsin-Madison and
Northwestern University has found evidence confirming a critical theory of how the planets in our solar system behave in their orbits around the sun.

The finding, published Feb. 23, 2017 in the journal Nature, is important because it provides the first hard proof for what scientists call the “chaotic
solar system,” a theory proposed in 1989 to account for small variations in the present conditions of the solar system. The variations, playing out over
many millions of years, produce big changes in our planet’s climate — changes that can be reflected in the rocks that record Earth’s history.

PHL včera updatovali přehled PO exoplanet (o TRAPPIST-1)
The Habitable Exoplanets Catalog - Planetary Habitability Laboratory @ UPR Arecibo
http://phl.upr.edu/projects/habitable-exoplanets-catalog

http://www.eso.org/public/usa/videos/eso1706j/

https://www.youtube.com/watch?v=WOzPdGS7vRs

A přidám dvě čerstvá videa od Cool Worlds. Davida Kippinga sleduji teprve tak půl roku, ale jak on
tak parta nadšených studentů exoplanet kolem něj by mohla vyvážet entuziasmus z poznání napříč sluneční soustavou.. :)

https://www.youtube.com/watch?v=UMbWUyEwirs

https://www.youtube.com/watch?v=16mROb2O2rA

VIRGO:
VIRGO: Sheltonova nesmrtelná pracovní historka krásně zpracovaná jako animák.
Poprvé jsem ji se zatajeným dechem hltal v devadesátkách v podání pana Grygara,
tohle mi přišlo po třech dekádách neméně poetické... :)

A star explodes: The story of supernova 1987A | Science News
https://www.youtube.com/watch?v=67LLoVnwUgw

Cassini: Mission to Saturn: Hardy Objects in Saturn's F Ring
https://saturn.jpl.nasa.gov/resources/7606/

As NASA's Cassini spacecraft continues its weekly ring-grazing orbits, diving just past the outside of Saturn's F ring, it is tracking several small, persistent objects there.

The greatest danger asteroids pose to us is not from the impact | New Scientist
https://www.newscientist.com/...612-the-greatest-danger-asteroids-pose-to-us-is-not-from-the-impact/

Wind kills. The most casualties from an asteroid impact won’t come from the impact itself. The wind, pressure and heat
caused by the crash are far more dangerous, no matter where the asteroid hits.

Clemens Rumpf at the University of Southampton, UK, and his colleagues have calculated the mortality risk, should an asteroid hit
a residential area. They considered asteroids that burn up completely, those that hit the ground, and those that strike in water.
Surprisingly, the airborne side effects were the ones that cost the most lives.

The greatest danger asteroids pose to us is not from the impact
https://www.youtube.com/watch?v=_CKiPyQc21I

VIRGO: ten satelit ju pozdravil pred zapadom? :)

Hubble Space Telescope
https://www.youtube.com/watch?v=_59jN2B5MYc

Venus Falling
https://www.youtube.com/watch?v=OHeq221Y-mc

The Dawn of a New Era for Supernova 1987a
https://www.nasa.gov/feature/goddard/2017/the-dawn-of-a-new-era-for-supernova-1987a
Three decades ago, astronomers spotted one of the brightest exploding stars in more than 400 years. The titanic supernova, called
Supernova 1987A (SN 1987A), blazed with the power of 100 million suns for several months following its discovery on Feb. 23, 1987.

Since that first sighting, SN 1987A has continued to fascinate astronomers with its spectacular light show. Located in the nearby
Large Magellanic Cloud, it is the nearest supernova explosion observed in hundreds of years and the best opportunity yet for
astronomers to study the phases before, during, and after the death of a star.