خرید جیشیر اکانت جی شیر خرید gshare

Monthly Archive: November 2017

Messier 61- the NGC 4303

Welcome back to Messier Monday! Today, we continue in our tribute to our dear friend, Tammy Plotner, by looking at the barred spiral galaxy known as Messier 61. In the 18th century, while searching the night sky for comets, French astronomer Charles Messier kept noting the presence of fixed, diffuse objects he initially mistook for comets. In time, he would come to compile a list of approximately 100 of these objects, hoping to prevent other astronomers from making the same mistake

The Earth Does Stop the Occasional Neutrino

At the Amundsen–Scott South Pole Station in Antarctica lies the IceCube Neutrino Observatory – a facility dedicated to the study of elementary particles known as neutrino. This array consists of 5,160 spherical optical sensors – Digital Optical Modules (DOMs) – buried within a cubic kilometer of clear ice.

These Streaks on Mars Could be Flowing Sand, not Water

When robotic missions first began to land on the surface of Mars in the 1970s, they revealed a harsh, cold and desiccated landscape. This effectively put an end generations of speculation about “Martian canals” and the possibility of life on Mars. But as our efforts to explore the Red Planet have continued, scientists have found ample evidence that the planet once had flowing water on its surface.

Could Magnetic Sails Slow an Interstellar Spacecraft Enough?

The number of confirmed extra-solar planets has increased by leaps and bounds in recent years. With every new discovery, the question of when we might be able to explore these planets directly naturally arises. There have been several suggestions so far, ranging from laser-sail driven nanocraft that would travel to Alpha Centauri in just 20 years ( Breakthrough Starshot ) to slower-moving microcraft equipped with a gene laboratories ( The Genesis Project )

Carnival of Space #536

This week’s Carnival of Space is hosted by Brian Wang at his  Next Big Future blog. Click here to read Carnival of Space #536 And if you’re interested in looking back, here’s an  archive to all the past Carnivals of Space . If you’ve got a space-related blog, you should really join the carnival

Messier 60 – the NGC 4649 Galaxy

Welcome back to Messier Monday! Today, we continue in our tribute to our dear friend, Tammy Plotner, by looking at the elliptical galaxy known as Messier 60. In the 18th century, while searching the night sky for comets, French astronomer Charles Messier kept noting the presence of fixed, diffuse objects he initially mistook for comets. In time, he would come to compile a list of approximately 100 of these objects, hoping to prevent other astronomers from making the same mistake.

خرید cccam خرید سی سی کم خرید cccam خرید سیسیکم خرید cccam خرید سیسیکم خرید شیرینگ خرید cccam خرید سی سی کم خرید cccam خرید سی سی کم سیسیکم خرید cccam خرید سی سی کم سیسیکم خرید vpn خرید فیلترشکن