Earth Sciences

Brightness. A 1st magnitude star is one of the brightest stars in the sky. Things at 7th magnitude are just barely visible to the naked eye, and objects at 29th magnitude are barely detectable even with the largest telescopes.

Mathematically, as you move up a magnitude the next star is about 2.512 times

brighter. So you need to keep multiplying until you've gone from magnitude 29

right up to 1st magnitude.

In fact an increase in brightness of five magnitudes is an increase of exactly 100 times.

So, in this case the answer is :

100 x 100 x 100 x 100 x 100 x about 15.85

That's about: 158,500,000,000 times brighter.

False. The closer a planet is to the sun, the hotter it tends to be due to receiving more sunlight and heat. Temperature on a planet is influenced by factors like distance from the sun, atmosphere composition, and surface conditions.

The sun is typically hottest during the early to mid-afternoon, typically between 2-4pm. This is when the sun is highest in the sky and has the most direct angle on the Earth's surface, leading to maximum heating.

A weak gravity would not be able to hold onto an atmosphere because the gas molecules would escape into space. Without an atmosphere, there would be no protection from cosmic radiation or meteoroids, making it inhospitable for life as we know it.

If you know that an asteroid is going to hit a specific place on the Earth, the most important safely tip is to be somewhere else.

Asteroid impacts are falling rocks. BIG rocks, because we get hit by little rocks all the time and mostly we don't pay much attention to them.

Right now, there is no way to prevent an asteroid from hitting the Earth, and so far, we have been remarkably unsuccessful in detecting the large rocks in the vicinity of Earth in enough time to do anything about it anyway. The first EVER example of scientists detecting a space rock on a collision course with Earth happened last October, and the detection gave us a grand total of THIRTEEN HOURS advance notice.

As telescopes and radar improve, we will slowly develop detection systems that will be able to track incoming threats. But what to do about them? It currently takes about 18 months, MINIMUM, to get a space probe off the ground and headed toward its destination. If we were trying to destroy or deflect an inbound asteroid, we might try setting off nuclear weapons on one side, to try to alter the orbit of the asteroid, or we might try using rocket engines to push it enough off course so as to miss the Earth. But small asteroids that would be easy to deflect are small enough to burn up harmlessly in the atmosphere, and things big enough to be dangerous are too massive to be moved with any power at our command.

One of the things that we need to develop over the next few decades is a technology capable of nudging a massive space rock into some safe trajectory.

Yes all the planets in our Solar System orbit the sun with the same direction of revolution. In space, there is no west or east. There is wide agreement that all the planets formed from a relatively flat disc of revolving matter with the Sun at its center.

The order of planets from the sun, starting with the one closest to the sun, is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

A white dwarf is typically about the size of Earth, but with a mass comparable to that of the Sun. This means it is extremely dense, packing a lot of mass into a small volume.

Most of the solar radiation absorbed by Earth's surface is later radiated back into space as infrared radiation. This process helps to maintain Earth's energy balance and regulate its temperature.

A red dwarf star has a surface temperature that ranges from about 2,500 to 4,000 degrees Celsius (4,532 to 7,232 degrees Fahrenheit). This is cooler compared to other types of stars like our sun, which has a surface temperature of around 5,500 degrees Celsius (9,932 degrees Fahrenheit).

There really isn't one. The Coriolis effect has been demonstrated in tanks as small as a few feet across, provided that one waits long enough for residual currents from filling the tank to die down.

A stellar nursery is a region in space where new stars are born. These nurseries are typically found within giant molecular clouds where gas and dust come together under gravity to form stars. It is a crucial stage in the life cycle of stars.

Estimates range from 78 light-years to 83 light-years from Earth.

there really is no way of knowing for sure at least not with the technology we have now but there are a lot of theories ranging from massive seismic events like earthquakes and volcanic eruptions all the way to releasing demons from hell.

The force due to gravity of a planet is dependent on the mass of that planet (and to a lesser extent the radius/diameter). If a planet is less massive then it will have a lower gravitational force.

Luminosity is the total amount of energy emitted by a star per unit time. For the Sun, luminosity is measured by calculating the total amount of energy it emits in all directions per second. This is done by combining measurements of the Sun's surface temperature and radius with the Stefan-Boltzmann law.

The Earth's outer core is a hot liquid composed mainly of iron and nickel. Its temperature is estimated to be around 4400 to 6100 degrees Celsius, and it plays a crucial role in generating Earth's magnetic field through the process of convection of molten metal.

A mid-ocean ridge forms when two sections of oceanic crust move apart from each other. Magma wells up from beneath the Earth's crust to fill the gap, creating new oceanic crust in the process. Over time, this process leads to the formation of underwater mountain chains.

Metals such as aluminum, silver, and gold are known to be good reflectors of electromagnetic radiation, including visible light and infrared radiation. Their smooth and shiny surfaces allow for efficient reflection of a wide range of electromagnetic wavelengths.

It cruised about 60,000 feet, so that's about as high as it would go.

Several reasons: to make for a training place for Astronauts to actually learn to live in free-fall for long periods of time, a place to do experiments, a stopping point or a "warehouse" for other programs, a storage facility, a telescope (radio, visual, xray, infrared and ultraviolet.)

For sending men to Mars mission it will take at least 3 years (the whole thing- get there do stuff, get back) so we need a real training facility to prepare the Astronauts. A space station is a good place to make hops from: from surface to low earth orbit, orbit to the moon. The moon to Mars. Mars to the Asteroids. Asteroids to the moons of Saturn and Jupiter. Each big jump can be made safer for humans by having working stations between each location. It's slow, expensive and slow. But better slow than never.