Galaxies, stars and planets
... replicated in laboratories on the Earth. Temperatures range from close to absolute zero (−273.15 ºC) in dense clouds of gas and dust from which stars form, up to many millions of degrees in the interiors of stars. Although interstellar space is not empty, its density is far lower than that found in ...
... replicated in laboratories on the Earth. Temperatures range from close to absolute zero (−273.15 ºC) in dense clouds of gas and dust from which stars form, up to many millions of degrees in the interiors of stars. Although interstellar space is not empty, its density is far lower than that found in ...
The Search for Worlds Like Our Own
... quest for other worlds as abodes of life has been one of mankind’s great questions for several millennia. For instance, as stated by Epicurus *300 BC: ‘‘Other worlds, with plants and other living things, some of them similar and some of them different from ours, must exist.’’ Demokritos from Abdera ...
... quest for other worlds as abodes of life has been one of mankind’s great questions for several millennia. For instance, as stated by Epicurus *300 BC: ‘‘Other worlds, with plants and other living things, some of them similar and some of them different from ours, must exist.’’ Demokritos from Abdera ...
The Cosmic Shoreline - Lunar and Planetary Institute
... Kuiper Belt Objects, a few of the largest of which retain stores of frozen methane on their surfaces. These are plotted in purple on Fig 1 as boxes-half-full. The presumption is that their surface volatiles will evaporate when close to the Sun and they will then for a time have atmospheres similar t ...
... Kuiper Belt Objects, a few of the largest of which retain stores of frozen methane on their surfaces. These are plotted in purple on Fig 1 as boxes-half-full. The presumption is that their surface volatiles will evaporate when close to the Sun and they will then for a time have atmospheres similar t ...
July 2008 - Warren Astronomical Society
... The Warren Astronomical Society Paper (WASP) is the official monthly publication of the Society. Each new issue of the WASP is e-mailed to each member and/or is available online at warrenastronomicalsociety.org. Requests by other Astronomy clubs to receive the WASP, and all other correspondence shou ...
... The Warren Astronomical Society Paper (WASP) is the official monthly publication of the Society. Each new issue of the WASP is e-mailed to each member and/or is available online at warrenastronomicalsociety.org. Requests by other Astronomy clubs to receive the WASP, and all other correspondence shou ...
INTERSTELLAR TRANSFER OF PLANETARY MICROBIOTA
... showed that ejecta from such a terrestrial event readily reach Mars and might bear microorganisms that quite probably survive the space radiation and landing events, though this had previously been thought exceedingly unlikely (Melosh 1988). Mileikowsky et al. (2000) have explored the transfer proc ...
... showed that ejecta from such a terrestrial event readily reach Mars and might bear microorganisms that quite probably survive the space radiation and landing events, though this had previously been thought exceedingly unlikely (Melosh 1988). Mileikowsky et al. (2000) have explored the transfer proc ...
white paper
... progresses (eg. a white paper on magneto-plasma processes on scales from the Sun to clusters of galaxies is currently in preparation). In the coming months, the project will initiate mechanisms to further expand the ngVLA science program, through continued community leadership. Such a facility will ...
... progresses (eg. a white paper on magneto-plasma processes on scales from the Sun to clusters of galaxies is currently in preparation). In the coming months, the project will initiate mechanisms to further expand the ngVLA science program, through continued community leadership. Such a facility will ...
Earth Science Standards-with explanations
... observed the patterns of stars in the sky and learned that the Sun is an [Not average star located in the Milky Way galaxy. Students should also have been available introduced to astronomical units (AUs), which measure distances between @ this solar system objects such as Earth and Jupiter. Students ...
... observed the patterns of stars in the sky and learned that the Sun is an [Not average star located in the Milky Way galaxy. Students should also have been available introduced to astronomical units (AUs), which measure distances between @ this solar system objects such as Earth and Jupiter. Students ...
Dark Stars: Dark Matter annihilation can power the first stars
... stars: higher DM density • THE RIGHT PLACE: one single star forms at the center of a million solar mass DM halo • THE RIGHT TIME: the first stars formed in the early universe, when it was much more compact than it is now ...
... stars: higher DM density • THE RIGHT PLACE: one single star forms at the center of a million solar mass DM halo • THE RIGHT TIME: the first stars formed in the early universe, when it was much more compact than it is now ...
The Relative Ages of M5 and Pal 4/Eridanus from their
... region of the sky (in the constellation Ursa Major) for 10 days and images were combined to give the most distant optical view of the Universe. Almost every object is a galaxy, and objects down to visual magnitude +30 can be seen. ...
... region of the sky (in the constellation Ursa Major) for 10 days and images were combined to give the most distant optical view of the Universe. Almost every object is a galaxy, and objects down to visual magnitude +30 can be seen. ...
Lecture 24
... measure position & velocity of MASERs to great accuracy. Velocity changes with radius precisely as expected if all mass is concentrated at ...
... measure position & velocity of MASERs to great accuracy. Velocity changes with radius precisely as expected if all mass is concentrated at ...
The Sun - The University Centre in Svalbard
... Here the gas bubbles up just like warm soup in a pan. Then, the light can escape freely out in space. Eight minute and 20 seconds later the light reaches the Earth and we feel the heat on our body. It’s odd to think that this is “old” energy that originated inside the Sun 200,000 years ago – when th ...
... Here the gas bubbles up just like warm soup in a pan. Then, the light can escape freely out in space. Eight minute and 20 seconds later the light reaches the Earth and we feel the heat on our body. It’s odd to think that this is “old” energy that originated inside the Sun 200,000 years ago – when th ...
Paul Green - Chandra X-Ray Observatory (CXC)
... Professor Philip Morrison of Cornell thinks the X rays may be generated when starlight picks up energy from high-speed electrons far out in space. Professor Minoru Oda of M.I.T. figures that the X rays come from a magnetic field surrounding the edges of the galactic nucleus. British Cosmologist Fred ...
... Professor Philip Morrison of Cornell thinks the X rays may be generated when starlight picks up energy from high-speed electrons far out in space. Professor Minoru Oda of M.I.T. figures that the X rays come from a magnetic field surrounding the edges of the galactic nucleus. British Cosmologist Fred ...
The PAMELA Space Experiment
... range 50 MeV to 270 GeV. In Figure II-A.2 is shown the current status of the positron measurements compared with PAMELA expected measurements in three years, with the additional contribution coming from neutralino annihilation. Possibilities for dark matter detection in the positron channel depend s ...
... range 50 MeV to 270 GeV. In Figure II-A.2 is shown the current status of the positron measurements compared with PAMELA expected measurements in three years, with the additional contribution coming from neutralino annihilation. Possibilities for dark matter detection in the positron channel depend s ...
Einstein`s Last Question (2005)
... Einstein was queried about the huge numbers of short-lived heavy particles found using high-energy accelerators. Those physicists were seeking basic matter and wanted to know Einstein’s thoughts. Einstein was a careful thinker not given to theatrics and was very serious when he replied, I would just ...
... Einstein was queried about the huge numbers of short-lived heavy particles found using high-energy accelerators. Those physicists were seeking basic matter and wanted to know Einstein’s thoughts. Einstein was a careful thinker not given to theatrics and was very serious when he replied, I would just ...
A Beginner`s Guide to Antimatter
... worked exceptionally well, describing many attributes of electron motion that previous equations could not. But his theory also led to a surprising prediction that the electron must have an "antiparticle," having the same mass but a positive electrical charge (the opposite of a normal electron's neg ...
... worked exceptionally well, describing many attributes of electron motion that previous equations could not. But his theory also led to a surprising prediction that the electron must have an "antiparticle," having the same mass but a positive electrical charge (the opposite of a normal electron's neg ...
File
... his new theory of general relativity to space and time. According to the theory of general relativity, mass affects the shape of space and the flow of time. Gravity results because space is warped by mass; the greater the mass, the greater the warp. However, at this time scientists did not know that ...
... his new theory of general relativity to space and time. According to the theory of general relativity, mass affects the shape of space and the flow of time. Gravity results because space is warped by mass; the greater the mass, the greater the warp. However, at this time scientists did not know that ...
Lecture 3 - The University Centre in Svalbard
... Here the gas bubbles up just like warm soup in a pan. Then, the light can escape freely out in space. Eight minute and 20 seconds later the light reaches the Earth and we feel the heat on our body. It’s odd to think that this is “old” energy that originated inside the Sun 200,000 years ago – when th ...
... Here the gas bubbles up just like warm soup in a pan. Then, the light can escape freely out in space. Eight minute and 20 seconds later the light reaches the Earth and we feel the heat on our body. It’s odd to think that this is “old” energy that originated inside the Sun 200,000 years ago – when th ...
Chapter 16 Galaxies and Dark Matter
... Galaxies are believed to have formed from mergers of smaller galaxies and star clusters. Image (c) shows large star clusters found some 5000 Mpc away. They may be precursors to a galaxy. ...
... Galaxies are believed to have formed from mergers of smaller galaxies and star clusters. Image (c) shows large star clusters found some 5000 Mpc away. They may be precursors to a galaxy. ...
Parent and Son Evening
... and nearest (d=16 Mpc) galactic-scale relativistic (synchrotron emitting plasma) jets. We have extracted from the HST archive all 220 nm images of the jet of M87, taken with the STIS MAMA camera and co-added them to provide the deepest image ever at this wavelength. The combination of highest spatia ...
... and nearest (d=16 Mpc) galactic-scale relativistic (synchrotron emitting plasma) jets. We have extracted from the HST archive all 220 nm images of the jet of M87, taken with the STIS MAMA camera and co-added them to provide the deepest image ever at this wavelength. The combination of highest spatia ...
AS3010: Introduction to Space Technology
... For this part of the course, we are mainly concerned with satellites and their orbits. The first thing that we are going to look at is ‘how to represent satellite orbits?’ How can two of us identify whether we are talking about the ‘same’ orbit. So we will start with Orbit representation – giving an ...
... For this part of the course, we are mainly concerned with satellites and their orbits. The first thing that we are going to look at is ‘how to represent satellite orbits?’ How can two of us identify whether we are talking about the ‘same’ orbit. So we will start with Orbit representation – giving an ...
15-3 Notes: Galaxies
... Astronomers classify a galaxy as a spiral, elliptical, or irregular galaxy according to its shape. Spiral galaxies, such as the Andromeda galaxy, have a bulge at the center and spiral arms. The spiral arms are made up of gas, dust, and new stars that have formed. The galaxy in which we live is a spi ...
... Astronomers classify a galaxy as a spiral, elliptical, or irregular galaxy according to its shape. Spiral galaxies, such as the Andromeda galaxy, have a bulge at the center and spiral arms. The spiral arms are made up of gas, dust, and new stars that have formed. The galaxy in which we live is a spi ...
Problem 1. Marking scheme Lagrange Point
... 7. We don’t understand your language, but the mathematic language is universal, so use as more relationships as you think that your solution will be better understand by the evaluator. If you want to explain in words we kindly ask you to use short English propositions. 8. Use the pen you find out on ...
... 7. We don’t understand your language, but the mathematic language is universal, so use as more relationships as you think that your solution will be better understand by the evaluator. If you want to explain in words we kindly ask you to use short English propositions. 8. Use the pen you find out on ...
Galaxies - senwiki
... -So what is a black hole? A black hole is a region of space where gravity is so strong that nothing, not even light, can escape. -Why? Black holes have extremely strong gravitational pulls. They can pull in stars and accumulate the mass of the stars. -Where are black holes located? Astronomers belie ...
... -So what is a black hole? A black hole is a region of space where gravity is so strong that nothing, not even light, can escape. -Why? Black holes have extremely strong gravitational pulls. They can pull in stars and accumulate the mass of the stars. -Where are black holes located? Astronomers belie ...
Advancing Physics A2
... between colour and brightness. Distance then found comparing actual with apparent brightness ...
... between colour and brightness. Distance then found comparing actual with apparent brightness ...
Outer space
Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.