Post has attachment
Geminid Meteor Shower 2017 - Shooting Stars in Spectacular Display - Must-See

The Geminid meteor shower is one of the most anticipated events in the stargazing calendar as more than 120 shooting stars per hour are set to sparkle in the skies.

The spectacular meteor shower can be seen from December 4–17. Date of peak December 13-14. A Waning Crescent Moon will make viewing conditions good for the shooting stars.

The Geminid meteor shower is one of the finest meteors showers visible in either the Northern or the Southern Hemisphere.

The Geminids, as their name implies, appear to emanate from the bright constellation Gemini (the twins). To find Gemini, look in the northeastern sky for the constellation Orion, which is easy to spot by the three stars in the hunter's "belt." Then look just up and to the right of Orion to see Gemini, high in the northeastern sky.
Although the meteors will appear to stream away from Gemini, they can appear all across the sky.

The Geminids are associated with the near-Earth object 3200 Phaethon, an asteroid that may have undergone a collision with another object in the distant past to produce the stream of particles that Earth runs into — creating the meteor shower.

The asteroid orbits the sun every 1.4 years. It occasionally comes close to Earth (at a safe distance) and also passes very close to the sun, inside of Mercury's orbit and only 0.15 astronomical units from the sun.
https://www.space.com/34921-geminid-meteor-shower-guide.html
https://www.timeanddate.com/astronomy/meteor-shower/geminids.html
http://earthsky.org/tonight/december-geminid-meteor-shower

Clips, images credit: NASA/JPL, ESO, ESA/HUBBLE

Music credit: YouTube Audio Library

Post has shared content
Jupiter was Hit By Mysterious Celestial Object Caused Out-of-the-World Explosion
Jupiter was Hit By Mysterious Celestial Object Caused Out-of-the-World Explosion 

Post has attachment
Mysterious Object Appears Out Of Nowhere on Titan, Saturn's Biggest Moon

'Magic island' appears out of nowhere on Titan, Saturn's biggest moon, then quickly disappears

Scientists are baffled by images of planet-like Titan's second largest sea, which appear to show an island materialise then disappear

A giant mysterious object has mysteriously appeared out of nowhere in one of the hydrocarbon seas on Saturn's giant planet-like moon, Titan, only to later disappear.

Described as a bright "transient feature" by scientists, it is not clear what the object is, or how it appeared there. Theories include that it could be the result of waves or bubbles, or even buoyant solid matter.

The sea had appeared flat and completely devoid of features, including waves prior to 2013. But then the object, dubbed "magic island" by scientists, suddenly materialised before vanishing in later images.

The object was spotted in Ligeia Mare, Titan's second-largest sea, by radar images.

Read more here:
http://tinyurl.com/mnuns9b

Provided by Corneil University
http://www.cornell.edu/

http://phys.org/news/2014-06-mysterious-magic-island-saturn-moon.html

Clips, images credit: NASA, Cassini Mission

Music credit: YouTube Audio Library

Post has shared content
Unexplained Lunar Phenomena - Something Strange is Going on
Unexplained Lunar Phenomena - Something Strange is Going on

After hundreds of years of detailed observation and study, our closest companion in the vast universe, Earth's moon, remains an enigma.

Six moon landings and hundreds of experiments have resulted in more questions being asked than answered.

Post has attachment
Supermoon Rising: The Full Cold Moon Marks the First (and Last) Full Supermoon of 2017

The full moon falling on December 3, 2017, presents the year’s one and only full moon supermoon. Of 2017’s 12 full moons, only the December 2017 full moon comes close enough to Earth (222,443 miles or 357,987 km) to enjoy supermoon status.

The Moon will reach peak fullness at 10:47 am EST (15:47 UTC on Dec. 3).
December's full moon is called the Full Cold Moon.

earthsky.org
Read more here: http://earthsky.org/?p=268284

The full moon on December 3, 2017, gives us the first in a series of three full moon supermoons. The following full supermoons will take place on January 2 and 31, 2018. The Blue Moon on January 31 will also feature a total lunar eclipse.

Clear skies!

Clips, images credit: ESO, ESA/HUBBLE & NASA/JPL

Music credit: YouTube Audio Library

Post has attachment
First Interstellar Cigar-Shaped Asteroid is like Nothing Seen Before

For the first time ever astronomers have studied an asteroid that has entered the Solar System from interstellar space. Observations from ESO’s Very Large Telescope in Chile and other observatories around the world show that this unique object was traveling through space for millions of years before its chance encounter with our star system. It appears to be a dark, reddish, highly-elongated rocky or high-metal-content object. The new results appear in the journal Nature on 20 November 2017.

ESO
Read more here: http://www.eso.org/public/news/eso1737/
https://www.eso.org/public/archives/releases/sciencepapers/eso1737/eso1737a.pdf

Clips, images credit: ESO, M. Kornmesser, L.Calcada.
Licenced under a Creative Commons Attribution 4.0 International License. https://creativecommons.org/licenses/by/4.0/

Music credit: YouTube Audio Library

Post has attachment
Best Night Sky Events, November 20-30 2017 - Eyes On The Skies

Discover the beauty and wonder of the night sky that has fascinated humanity for millenia. Best Night Sky Events, November 20-30 2017 .

Moon and Saturn, Nov. 20.
As dusk gives way to darkness, look in the southwest sky, and rather close to the sunset point on the horizon, for the lovely celestial couple, the moon and Saturn.
http://earthsky.org/tonight/moon-saturn-after-sunset-november-20

Mercury at Greatest Eastern Elongation, Nov. 23.
The planet Mercury reaches greatest eastern elongation of 22.0 degrees from the Sun. This is the best time to view Mercury since it will be at its highest point above the horizon in the evening sky. Look for the planet low in the western sky just after sunset.
http://www.seasky.org/astronomy/astronomy-calendar-2017.html

In late November look for summer triangle.
The Summer Triangle showcases three brilliant stars – Vega, Deneb and Altair – in three separate constellations.
http://earthsky.org/tonight/summer-triangle-in-fall-and-winter-sky

Mercury/Saturn conjunction, Nov. 28
Mercury will swing 3.0 degrees south of Saturn on November 28, 2017.
http://earthsky.org/tonight/mercurysaturn-conjunction-on-november-28

Mars/Spica conjunction, Nov. 29
Get up before morning dawn, or around one and one-half hours before sunrise, to see the planet Mars pairing up with the star Spica on the sky’s dome in late November and early December 2017.
http://earthsky.org/tonight/marsspica-conjunction-late-november-2017

https://www.space.com/16149-night-sky.html

Clips, images credit: ESO, NASA, ESA/Hubble Space Telescope
Licenced by : https://creativecommons.org/licenses/by/4.0/
https://www.spacetelescope.org/
http://www.eso.org/public/

Music credit: YouTube Audio Library

Post has shared content
Two Unknown Planets Hidden Well Beyond Pluto? Solar System Mysteries
Two Unknown Planets Hidden Well Beyond Pluto? Solar System Mysteries

New calculations by astronomers in Spain and the UK suggest that not one, but two unknown planets might exist in our solar system, beyond Pluto’s orbit.

The new calculations – from the Complutense University of Madrid (UCM, Spain) and the University of Cambridge (UK) – are based on the orbital behavior of known objects at our solar system’s fringes. The most accepted theory of our solar system establishes that the orbits of extreme trans-Neptunian objects should be distributed randomly. By an observational bias, their paths must fulfill a series of characteristics.

For example, according to the established theory, objects beyond Pluto must have a semi-major axis – the axis which defines a planet’s farthest point from the sun – with a value close to 150 AU (or 150 times the distance between the Earth and the sun; by contrast, Pluto’s orbit has a semi-major axis of 39 AU). Plus, according to the theory, their orbits must be inclined to the plane of the solar system by almost 0°.

Yet this isn’t what astronomers observe a dozen of known small bodies beyond Pluto. The values of the semi-major axis are between 150 AU and 525 AU. The average inclination of their orbits is around 20°.

In other words, solar system theory doesn’t match what is observed. When that happens, astronomers scratch their heads and wonder why. These astronomers believe the reason is that there are unknown large planets out on the fringes of the solar system, waiting to be discovered.
http://earthsky.org/space/two-or-more-planets-beyond-pluto

Their work has been published as two articles in the journal Monthly Notices of the Royal Astronomical Society Letters.
http://adsabs.harvard.edu/abs/2015MNRAS.446.1867D
http://adsabs.harvard.edu/abs/2014MNRAS.443L..59D

Trans-Neptunian objects suggest that there are more planets in the solar system
http://www.agenciasinc.es/en/News/Trans-Neptunian-objects-suggest-that-there-are-more-planets-in-the-solar-system

Planet Nine
https://en.wikipedia.org/wiki/Planet_Nine

2012 VP113
https://en.wikipedia.org/wiki/2012_VP113

It's almost certain that there are massive objects far beyond Pluto.
It sort of shows how little we know about our own solar system.
Thank you for watching!

Clips, images credit: ESA/HUBBLE, ESO & NASA Licenced by
https://creativecommons.org/licenses/by/4.0/

2012 VP113 orbit simulation image: By Tiouraren - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=47726137
Planet Nine: By Tiouraren - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=47726137

Music credit: YouTube Audio Library

Post has shared content
New Earth-Sized Planet Found JUST 11 Light Years Away Could Support Life
New Earth-Sized Planet Found JUST 11 Light Years Away Could Support Life

A temperate Earth-sized planet has been discovered only 11 light-years from the Solar System by a team using ESO’s unique planet-hunting HARPS instrument. The new world has the designation Ross 128 b and is now the second-closest temperate planet to be detected after Proxima b. It is also the closest planet to be discovered orbiting an inactive red dwarf star, which may increase the likelihood that this planet could potentially sustain life. Ross 128 b will be a prime target for ESO’s Extremely Large Telescope, which will be able to search for biomarkers in the planet's atmosphere.

With the data from HARPS, the team found that Ross 128 b orbits 20 times closer than the Earth orbits the Sun. Despite this proximity, Ross 128 b receives only 1.38 times more irradiation than the Earth. As a result, Ross 128 b’s equilibrium temperature is estimated to lie between -60 and 20°C, thanks to the cool and faint nature of its small red dwarf host star, which has just over half the surface temperature of the Sun.

Many red dwarf stars, including Proxima Centauri, are subject to flares that occasionally bathe their orbiting planets in deadly ultraviolet and X-ray radiation. However, it seems that Ross 128 is a much quieter star, and so its planets may be the closest known comfortable abode for possible life.

Although it is currently 11 light-years from Earth, Ross 128 is moving towards us and is expected to become our nearest stellar neighbour in just 79 000 years — a blink of the eye in cosmic terms. Ross 128 b will by then take the crown from Proxima b and become the closest exoplanet to Earth!

http://www.eso.org/public/news/eso1736/

Research paper in Astronomy & Astrophysics
https://www.eso.org/public/archives/releases/sciencepapers/eso1736/eso1736a.pdf

Clips, images credit: Credit: ESO/M. Kornmesser, ESA/HUBBLE
licensed under a Creative Commons Attribution 4.0 International License - https://creativecommons.org/licenses/by/4.0/

Music credit: YouTube Audio Library

Post has shared content
'Super Earth' with Seas of Molten Lava may have an Earth-like Atmosphere
'Super Earth' with Seas of Molten Lava may have an Earth-like Atmosphere

Twice as big as Earth, the super-Earth 55 Cancri e was thought to have lava flows on its surface. The planet is so close to its star, the same side of the planet always faces the star, such that the planet has permanent day and night sides.

Based on a 2016 study using data from NASA's Spitzer Space Telescope, scientists speculated that lava would flow freely in lakes on the starlit side and become hardened on the face of perpetual darkness. The lava on the dayside would reflect radiation from the star, contributing to the overall observed temperature of the planet.

Now, a deeper analysis of the same Spitzer data finds this planet likely has an atmosphere whose ingredients could be similar to those of Earth's atmosphere, but thicker. Lava lakes directly exposed to space without an atmosphere would create local hot spots of high temperatures, so they are not the best explanation for the Spitzer observations, scientists said.

http://www.spitzer.caltech.edu/news/2017-ssc2017-17-Lava-or-Not-Exoplanet-55-Cancri-e-Likely-to-have-Atmosphere

Clips, images credit: Spitzer Space Telescope, ESO, ESA/HUBBLE

Music credit: YouTube Audio Library
Wait while more posts are being loaded