Astronomy Guide Archives - Page 2 of 10 -
There are many unanswered questions about the universe that keep scientists awake at night, theories like the birth, evolution, symmetries and consistency of the universe remain a puzzle for physicists.
Don’t let the name fool you: a black hole is anything but empty space. Rather, it is a great amount of matter packed into a very small area – think of a star ten times more massive than the Sun squeezed into a sphere approximately the diameter of New York City. The result is a gravitational field so strong that nothing, not even light, can escape.
This #Infographic puts in to perspective just how big the universe is. From the city you live in, to the state, country, continent, planet, solar system, galaxy etc. Visualizing the universe and its visible area puts in to perspective just how small we are. With the help of Hubble space images, and advanced high definition cameras from NASA, we are able to see the universe how we never could in the past.
Kuiper Belt is vast expanse of space beyond the last known gas giant of the Solar System, the Neptune. This space is composed of icy objects. In 1950, it was proposed by Jan Oort, a Dutch astronomer that the comets that we see in our known solar system actually originate from far reaches of the solar system, a large unexplored reservoir! This was named as Oort Cloud.
A little exoplanet living in a neighboring star system has caused a very big stir among scientists. It may be too hot for life to survive on its surface, but the discovery of an Earth-sized planet orbiting Alpha Centauri B has ignited hope that the star — one of two that orbit one another as a binary pair — could play host to a whole system of rocky worlds. But before we plan a trip to Alpha Centauri star system, what we need to know about this earth-sized world. Here is an astronomy guide for Alpha Centauri Bb.
Think you know everything there is to know about the Sun? Think again. Here are some facts about the Sun, collected in no particular order. Some you might already know, and others will be totally new to you.
As NASA’s New Horizons spacecraft has begun its long-awaited historic encounter with Pluto, entering the first of several approach phases that will culminate with the first close-up flyby of the Pluto system six months from now, we decide to write an interesting-list about dwarf planet pluto including 15 curious things maybe you didn’t know about this demoted planet. Enjoy!
Since its launch in 2009, the Kepler Space Telescope has found a lot of “exoplanets,” or planets that are orbiting a star, just as the Earth orbits the sun. The total number is said to be 1,000-plus. However, last year one exoplanet was discovered that has unusual properties—it is within the “habitable zone,” i.e. the right distance from the right-sized star to potentially support water, and thus, life.
Dark matter is something that an astronomer or scientist cannot observe through ordinary telescopes. It does not emit or absorb light, and is considered responsible for holding all the normal matter in the universe together. Normal matter is something which can be observed and recorded through available means of technology. This article lists some very interesting facts about dark matter.
The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it talks about the universe as we know it starting with a small singularity, then inflating over the next 13.8 billion years to the cosmos that we know today.