Life on other planets
... The radiant energy in the form of light and heat reaching every square metre of a planet’s surface depends on: (a) How far the planet is from the star (b) How much energy the star is giving out and (a) For an ‘average’ star is like our Sun with a surface temperature of 6000 oC life as we know it exi ...
... The radiant energy in the form of light and heat reaching every square metre of a planet’s surface depends on: (a) How far the planet is from the star (b) How much energy the star is giving out and (a) For an ‘average’ star is like our Sun with a surface temperature of 6000 oC life as we know it exi ...
Moonstruck Scientists Count 63 and Rising
... The search for new moons—as well as planets, comets, asteroids, rocks, and dust littering the starry skies—is part of humankind’s age-old quest to understand the universe we live in. By studying them, scientists have learned much about the solar system, including our own Earth. How it was formed and ...
... The search for new moons—as well as planets, comets, asteroids, rocks, and dust littering the starry skies—is part of humankind’s age-old quest to understand the universe we live in. By studying them, scientists have learned much about the solar system, including our own Earth. How it was formed and ...
Space - cloudfront.net
... Neptune Neptune is the fourth biggest planet and the eighth from the sun. Neptune was first discovered by Galle and d’arrest on 1846 September 23.It takes 164.79 Earth years to orbit the sun (much longer from sun so it takes longer ...
... Neptune Neptune is the fourth biggest planet and the eighth from the sun. Neptune was first discovered by Galle and d’arrest on 1846 September 23.It takes 164.79 Earth years to orbit the sun (much longer from sun so it takes longer ...
Astronomy
... because of the type and temperature of the gases and the escape velocity from the planet or moon. The velocity of a gas molecule depends on its mass according to the MaxwellBoltzmann distribution. The distribution has a a very long tail. Heavier molecules like O2, H2O, N2 have less of a tail than He ...
... because of the type and temperature of the gases and the escape velocity from the planet or moon. The velocity of a gas molecule depends on its mass according to the MaxwellBoltzmann distribution. The distribution has a a very long tail. Heavier molecules like O2, H2O, N2 have less of a tail than He ...
Sun, Earth and Moon Model
... is a planet orbiting a distant star.) The strange new world was discovered orbiting a star in a triple star system. That means its parent star orbits alongside two other stars. This makes sunrises and sunsets something special — sometimes one sun rises in the sky, sometimes it’s two or three! But de ...
... is a planet orbiting a distant star.) The strange new world was discovered orbiting a star in a triple star system. That means its parent star orbits alongside two other stars. This makes sunrises and sunsets something special — sometimes one sun rises in the sky, sometimes it’s two or three! But de ...
Document
... - probably not unique or necessary - probably common - even one third of all stars is a huge number. - no reason to think that such events would not occur ...
... - probably not unique or necessary - probably common - even one third of all stars is a huge number. - no reason to think that such events would not occur ...
The Solar System
... spacecraft went in to orbit around the asteroid 433 Eros and gathered data. The data showed that Eros has many craters and is similar to meteorites on Earth. • The Japanese probe, Haryabusa arrived in 2005 to collect samples. ...
... spacecraft went in to orbit around the asteroid 433 Eros and gathered data. The data showed that Eros has many craters and is similar to meteorites on Earth. • The Japanese probe, Haryabusa arrived in 2005 to collect samples. ...
Final Exam Practice Part I
... 1. What caused it to shrink? 2. What caused it to heat up? 3. What caused it to spin faster? 4. What caused its shape to become a disk? 5. Today’s planets formed from dust and gases that clumped together. What caused this clumping into actual planets? 6. The inner planets of our solar system are roc ...
... 1. What caused it to shrink? 2. What caused it to heat up? 3. What caused it to spin faster? 4. What caused its shape to become a disk? 5. Today’s planets formed from dust and gases that clumped together. What caused this clumping into actual planets? 6. The inner planets of our solar system are roc ...
The Inner Planets
... to the five outer planets. The four inner planets are small and dense and have rocky surfaces. These planets are often called the terrestrial planets, from the Latin word terra, or “earth.” Earth is unique in our solar system in having liquid water at its surface. Earth has a suitable atmosphere and ...
... to the five outer planets. The four inner planets are small and dense and have rocky surfaces. These planets are often called the terrestrial planets, from the Latin word terra, or “earth.” Earth is unique in our solar system in having liquid water at its surface. Earth has a suitable atmosphere and ...
Name_________________________ 1 AST 101 Ancient
... If the Earth was moving, objects like the Discovery of Jupiter’s Moons Moon would get left behind Jupiter is moving and its moons are not left behind If the Earth was moving, we would see S ...
... If the Earth was moving, objects like the Discovery of Jupiter’s Moons Moon would get left behind Jupiter is moving and its moons are not left behind If the Earth was moving, we would see S ...
27-3
... 11. Earth is the ______________________ planet from the sun. 12. The orbital period of Earth is ______________________ days. 14. Earth completes one ______________________ on its axis every day. 15. How many moons does Earth have? _______________________________________________________________ 16. O ...
... 11. Earth is the ______________________ planet from the sun. 12. The orbital period of Earth is ______________________ days. 14. Earth completes one ______________________ on its axis every day. 15. How many moons does Earth have? _______________________________________________________________ 16. O ...
The Earth in Space
... Equal length day and night When both poles are equidistant from sun Spring/Vernal (March) and fall/Autumnal (Sept) ...
... Equal length day and night When both poles are equidistant from sun Spring/Vernal (March) and fall/Autumnal (Sept) ...
Moab Scale Model Solar System
... volcanism, impacts from other bodies, movements of its crust, and atmospheric effects such as dust storms. It has polar ice caps that grow and recede with the change of seasons; areas of layered soils near the Martian poles suggest that the planet's climate has changed more than once, perhaps caused ...
... volcanism, impacts from other bodies, movements of its crust, and atmospheric effects such as dust storms. It has polar ice caps that grow and recede with the change of seasons; areas of layered soils near the Martian poles suggest that the planet's climate has changed more than once, perhaps caused ...
Why is Pluto no longer considered a planet?
... shape, and (c) has cleared the neighbourhood [sic] around its orbit [ref]. Pluto is relatively round and orbits the Sun, but it does not meet the criteria because its orbit crosses Neptune's orbit. Critics of the resolution argue that other planets in the solar system, including the Earth, have not ...
... shape, and (c) has cleared the neighbourhood [sic] around its orbit [ref]. Pluto is relatively round and orbits the Sun, but it does not meet the criteria because its orbit crosses Neptune's orbit. Critics of the resolution argue that other planets in the solar system, including the Earth, have not ...
ppt document - FacStaff Home Page for CBU
... fire and water, plus a fifth element, the quintessence, that filled the heavens. Earth not spinning since there is no great wind outside, so Earth must be stationary, so other things must be revolving around the earth (geocentric model). ** Alexander the Great lived during this time Eratosthenes: ~2 ...
... fire and water, plus a fifth element, the quintessence, that filled the heavens. Earth not spinning since there is no great wind outside, so Earth must be stationary, so other things must be revolving around the earth (geocentric model). ** Alexander the Great lived during this time Eratosthenes: ~2 ...
The Origin of Our Solar System
... • When our cloud of spinning matter was spinning as “fast as it could,” the disk began to shed layers – leaving behind rings of matter. This is a painting of the early solar system, according to Laplace, from NASA’s website. ...
... • When our cloud of spinning matter was spinning as “fast as it could,” the disk began to shed layers – leaving behind rings of matter. This is a painting of the early solar system, according to Laplace, from NASA’s website. ...
april 2009 - Holt Planetarium
... view at the ringed planet from a different perspective. At a distance of 1.43 billion km, almost ten times the Sun-Earth distance, Saturn takes 29.5 years to complete one orbit. Most of the time the magnificent ring system is tipped towards us but once every 15 years the rings are presented edge-on. ...
... view at the ringed planet from a different perspective. At a distance of 1.43 billion km, almost ten times the Sun-Earth distance, Saturn takes 29.5 years to complete one orbit. Most of the time the magnificent ring system is tipped towards us but once every 15 years the rings are presented edge-on. ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.