Is There an Edge of the Universe?

The “dark flow” of wayward galaxy clusters that appear to be pulled in one direction could give us our first hint of something beyond the cosmic horizon, which normally marks the limit of the observable universe.

Expanding Space

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List of All the Missions to Mars to Date
Some of the Missions that have been flown to Mars are Mariner 4, Mars 3, Mars 5, Mars 6, Phobos 2, Mars Express, Dawn. Many have been successfully sent to the Mars and some of them with partial success.It's interesting to see the trend that trips to Mars have taken. Particularly how the USSR sent many probes to Mars before the USA, but the USA had the first successful mission. Check out the other...
Supernovas Explained
A supernova (shortened SN, plural SNe following supernovae) is a stellar outburst that is more enthusiastic than a nova. It's maintained /ˌsuːpərˈnoʊvə/ with the plural supernovae /ˌsuːpərˈnoʊviː/ or supernovas. Supernovae are greatly iridescent and create a blast of radiation that regularly briskly eclipses a whole universe, before blurring from perspective over some weeks or months. Aroun...
Black Holes Explained
The most Bizarre objects in the Universe, black holes are aptly named – they emit no visible light at all. And yet, most black holes are the end state of the most brilliant objects in the cosmos; giant stars that go supernova. The super compressed core that remains after the explosion has such strong gravity that even light cannot escape it – so the object is black.
Apollo Lunar Module - Outside
The Lunar Module basically consists of many electronically connected parts that helps the Module complete. It mainly consists of the Docking Window, The Antenna to receive and send the signals, the Docking Lights, The Tracking Light, The Forward Hatch, The Mesa, The Ladder to get into the Module, the Egress Platform, The Rover, The Landing Probe, the Overhead Hatch, the Docking Target, the Eva...
Messages Sent into Space
Space messages tell about the biosphere, that includes the basic chemical compositions of the continents, oceans and atmosphere. The highest and lowest points of Earth and the surface strength of gravity are also listed in the space messages. Along with the relative sizes and ordering of the planets in our solar system, this message tells about the mass and radius of both our Sun and Jupiter. ...
Driving Force That Drives Galaxies Apart
The universe is expanding at an ever – increasing rate, with something that astronomers call dark energy appearing to push it apart faster than gravity can pull it together. Type la supernovas are stars that explodes with a predictable brightness. Light from distant supernovas locks dimmer and redder than expected, implying that the universe is expanding. The more distant the star, the fast...
Astronomy 101 Collection
According to Quantum mechanics, electrons bound to an atom can only have particular values of energy; they are unique to that element. Absorption or emission of a photon of light by the atom occurs when the energy of that photon matches the difference between two of these energy levels. The gravitational pull of any object gets weaker the further you move from the object. Thus, the Moon p...
Mars World Map
In 1659 Dutch astronomer Christian Huygens, using an early telescope, drew the first sketch of a surface feature on Mars, a dark patch know today as Syrtis Major. More than three centuries later the mars global Surveyor is charting the entire planet. Data beamed from the orbiting surveyor have rendered a detailed and true-color map of this seemingly most Earthlike of planets.
National Geographic: The Heavens 1957
Consistent with Aristotle, the sublime forms are the absolute best substances, (or "substances"), whose movements are administered by standards different than these of forms in the sublunary circle. The last are made out of one or every last trace of the four traditional components (earth, water, air, blaze) and are perishable; anyhow the matter the sky are made of is enduring ether, so they a...
Radio Astronomy
Radio waves are the same type of waves as light. They have less energy than visible light and so have a longer wavelength, but they travel at the same speed as light. At night our eyes and optical telescopes sees light from stars. But normal stars only produce radio waves very weakly.
Phases of Venus
Parallel to the Venus Express Mission, ESA has initiated an observing campaign that incorporates a number of professional and amateur observers. Since the cameras onboard Venus Express have only a small field of view, ground based observations can provide important context information on Venus’s dense atmosphere as a whole.
The Sun Explained: Inside and Out
The Sun is the star at the focal point of the Earth's planetary group. It's just about splendidly round and comprises of blazing plasma entwined with attractive fields. It has a breadth of about 1,392,684 km, in the ballpark of 109 times that of Earth, and its mass (about 2×1030 kilograms, 330,000 times that of Earth) explains about 99.86% of the sum mass of the Sun oriented System. Synthet...
The Amount of Junk in Outer Space
How much damage can a space debris do ? An example of the damage caused, a tiny speck of paint from a satellite once dug, a pit in a space shuttle window nearly a quarter – inch wide. 1mm metal chip could do as much damage as a 0.22-caliber long rifle bullet. A pea-sized ball moving this fast is as dangerous as a 400 lb safe travelling at 60 mph. A metal sphere the size of a tennis ball is as l...
Saturn's Rings Explained
The rings of Saturn are the most far reaching planetary ring framework of any planet in the Earth's planetary group. They comprise of endless minor particles, running in size from micrometres to metres,that circle about Saturn. The ring particles are made just about truly of water ice, with a follow segment of rough material. There is still no agreement as to their mechanism of creation; certa...
Exploring the Planets
A planetary spacecraft has basic instruction programmed into its onboard computers at launch. However, most of the details are sent by controllers on Earth at a later stage, because journeys are often several years long. After discovering a problem with the radio transmissions between Cassini and Huygens, mission controllers were able to change their plans.
Old Time Diagram of the Solar System
The Solar system comprises of the Sun and its planetary framework of eight planets, their moons, and different non-stellar questions. It shaped roughly 4.6 billion years back from the breakdown of a monster sub-atomic mist. The unfathomable larger part of the framework's mass is in the Sun, with the majority of the remaining mass held in the planets. The four more diminutive internal planets, Merc...
50 Years of Spaceflight -- Capsles and Shuttles
It has been 50 years since the Russian pilot Yuri Gagarin has stepped onto the Moon in 1961. Since then more than 500 people have been launched into space in a variety of vessels. Twelve people have walked on the moon, and an additional 14 have flown over the moon without landing. The farthest away that humans have traveled so far was 248655 mi, which was achieved by the Apollo 13 astronauts ...
Other Solar Systems
Is our Solar system unique in the Universe ? Until recently, astronomers could only guess whether other stars are orbited by planetary systems. Extrasolar planets – those that orbit stars other than the Sun – are difficult to detect, because they are about one – billionth the brightness of their parent stars. Extrasolar planets can also be detected by watching for a drop in brightness as ...