Sometime in the not too distant future, scientists will be peering through VISIR into the Alpha Centauri system in search of planets. VISIR, which is short for VLT Imager and Spectrometer for mid-Infrared instrument, will be modified to look for and identify potentially habitable planets in the nearest star system to humanity's star system.
Alpha Centauri
Alpha Centauri, which is 4.37 light-years away from Sol (Earth's solar system), is a trinary star system. The three stars that comprise the Alpha Centauri system are Alpha Centauri A, Alpha Centauri B, and Alpha Centauri C. Alpha Centauri A, which is a G-class star (G2V to be specific), is similar to Sol (Sol is the name of our parent star) and is about 4.3 light-years from Earth; Alpha
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This is because of the brightness of the planetary system's host star. A host star, like the three Alpha Centauri stars, outshine planets in the solar system because planets are too dim. However, the mid-infrared wavelength range will make observing exoplanets in the Alpha Centauri system easier for scientists. This is because "the thermal glow from an orbiting planet greatly reduces the brightness gap between it and its host star."
But despite the mid-infrared, each Alpha Centauri star will remain millions of times brighter than the planets that scientists are trying to locate and observe. This is where VISIR will utilize the coronagraphy method to reduce the stellar light of the Alpha Centauri stars. The coronagraphy method is used to see objects that reside very close to their parent star, for example, if an alien scientist was observing Mercury next to Sol.
Market Benefits
The mission of Breakthrough Initiatives, which includes such names as Stephen Hawking, Mark Zuckerberg, Yuri Milner, founder of DST Global, as board members, is to search for extraterrestrial life beyond this solar system. And so the organization will be providing a large fraction of the necessary technologies and development costs for this VISIR experiment; and the European Southern Observatory will be providing the telescope, technology, and
The research area of detecting exoplanets, planets outside our own solar system, is a huge area of interest and funding. The importance of being able to detect these planets is they can give us information and an insight into planetary formation, to help the search for ”Earth- like” planets in the habitable zone, and of course the ever-present question of extraterrestrial life. So on order to attempt to gather information about these things we must be have solid detection techniques in place for exoplanets. A few of the important methods shall be discussed here, including the radial velocity method, transit method, direct imaging and gravitational microlensing among others .
“In a fraught fiscal climate, NASA should focus on what it does best and on what offers the best return on investment. Solar system exploration meets both criteria: the U.S. has long led the interplanetary charge, and the resulting scientific benefits have come at a relative bargain. This year NASA 's planetary science program cost about $1.5 billion -- less than what NASA spent designing a congressionally mandated rocket, the Space Launch System, which appears more likely to satisfy aerospace contractors than to aid the cause of space exploration. Such directives from lawmakers all too often land in NASA 's lap without the funds to carry them out (To The
The sensitive instruments aboard the SOHO spacecraft have already helped scientists here on Earth discover and explain some of the mysteries of the Sun as well as to confirm some of their theories they previously held. For example, in May of 1998 with the help of the Michelson Doppler Interferometer scientists were able to see with greater clarity the giant convective cells inside and on the surface of the Sun.
Just recently a major discovery was found with the help of a device known as The Hubble Telescope. This telescope has just recently found what many astronomers believe to be a black hole, After being focuses on a star orbiting empty space. Several pictures of various radiation fluctuations and other diverse types of readings that could be read from that area which the black hole is suspected to be in.
The Orion Nebula is one of the closest stellar regions to the Earth. Using parallax measurements, it has been estimated that this nebula is only 1,500 light years away. In addition, the Orion Nebula is a relatively young star cluster, with an approximate age of less than one million years. It has even been speculated that some of the younger stars within the cluster are only 300,000 years old.
These are the reasons why I believe there should be more investment in space research and technology. It would be a time consuming and financially draining quest, but the pay off in new technology, applications, resources, and expansion opportunities make it a goal to strive for. As our rate of consumption of Earth’s natural resources continues to increase, it is imperative that we invest in the research of outer space as a possible solution to sustaining the human race.
Redd, Nola T. "Space and NASA News – Universe and Deep Space Information | Space.com." Space.com. Space.com, 08 Mar. 2013. Web. 26 Mar. 2014. .
On the other hand, Pluto is larger than the other 40 known moons in the solar system. There is no scientific reason to arbitrarily distinguish between planets and asteroids based on the sizes of the moons that happen to be present in a planetary system.... ... middle of paper ... ... 78, No. 1, pp. 113-117.
When considering this topic, one might ask themselves why explore space? We explore space to compare other planets with the earth and to study the sun, to explore the universe while finding if intelligent life exists, for satellites to improve communications, weather forecasting, navigation, resource monitoring, and “to create a focal point for a new intellectual renaissance” (Ruzic).
The Andromeda Galaxy being 220,000 light years across is the biggest of its local galaxy group which includes the Milky Way Galaxy, Triangulum Galaxy, and about 44 smaller galaxies. The Andromeda Galaxy contains about (1 trillion*10to the 12th power) stars, which is more then double the estimated 200- 400 billion stars located in our own Milky Way Galaxy. Along with this the Andromeda Galaxy has a brightness magnitude of 3.4 making it one of the brightest of all the Messier Object group.
Human fascination with the stars is as ancient as Babylonians and has been suggested to be older than Stonehenge. From “be fruitful and multiply” to “live long and prosper,” the instinct to protect and propagate the species has manifested in religion, art, and the imaginations of countless individuals. As human understanding of space treks out of the fantastical and into the scientific, the realities of traveling through and living in space are becoming clearer. Exploring, investigating, and living in space pose an expansive series of problems. However, the solutions to the problems faced by mankind's desire to reach beyond the horizon, through the night sky, and into the stars are solutions that will help in all areas of life on Earth.
Tyler, Pat. Supernova. NASA’s Heasarc: Education and Public Information. 26 Jan. 2003. 22 Nov. 2004
Space has always been a pivotal and utmost important subject for many years. In the past, scientists have made monumental advances in this field such as sending people into orbit and landing a man on the moon. Of course, this has only barely been explored and we still have a lot more to see of the ever-vast outer space. One of the most significant topics of all of science has only been touched and there’s still more to come.
Our solar system has eight planets, their moons and satellites, and they are all orbiting the Sun. The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto used to be the ninth planet but IAU changed the definition of planet and Pluto did not meet the standards so it is now a Dwarf planet.
“Sheltered as we are by Earth's atmosphere and magnetic field, which deflect lethal radiation from space, we are like coddled children who have never ventured into a tough neighborhood” (Folger 2). Humans have been fascinated with space since the beginning of our time. Just like children and rough neighborhoods, we have tackled obstacle over obstacle to make it home again. In the end, we have a better knowledge and strength than before. The future of space exploration can assist us in answering the everlasting question of how the universe came to be. The more we explore the infinite galaxies, the more we can scientifically discover and create new technologies as science advances. As we continue to discover, we can create new fields and occupations for aspiring young students like myself.