The fastest changes appear to be associated with local weakening of the magnetic field. Our model suggests this is caused by movement of patches of intense magnetic field across the surface of the liquid core.

Magnetic north was drifting at a rate of up to about 9 miles (15 km) a year. Since the 1990s, however, the drift of Earth’s magnetic north pole has turned into “more of a sprint,” scientists say. Its present speed is about 30 to nearly 40 miles a year (50-60 km a year) toward Siberia.

A team from Leeds University, recently explained that this shift of the North Magnetic Pole has been caused by the competition of two magnetic “blobs” on the edge of the Earth’s outer core. This can be explained simply, as the North Geomagnetic Pole is different from the North Magnetic Pole.

equator

magnetic north pole

A growing dent in Earth’s magnetic field could wreak havoc on satellites and the space station, NASA says. Earth’s magnetic field protects the planet from deadly solar radiation, but it has weakened over the last few centuries.

Today, the only magnetic field Venus may have comes from the interaction between Venus’s upper atmosphere and the solar wind. The interaction causes electric currents to flow in the upper atmosphere which then create a weak magnetic field that streams behind the planet like a comet’s tail.

Probes found that Mars and Venus do not have a significant magnetic field. Jupiter, Saturn, Uranus, and Neptune all have magnetic fields much stronger than that of the Earth. Jupiter is the champion- having the largest magnetic field. The planet Uranus has an interesting magnetic field.

To date, no definitive proof has been found of past or present life on Venus. With extreme surface temperatures reaching nearly 735 K (462 °C; 863 °F) and an atmospheric pressure 90 times that of Earth, the conditions on Venus make water-based life as we know it unlikely on the surface of the planet.

Air on Venus The atmosphere of Venus is very hot and thick. You would not survive a visit to the surface of the planet – you couldn’t breathe the air, you would be crushed by the enormous weight of the atmosphere, and you would burn up in surface temperatures high enough to melt lead.

To find life on Neptune, the planet would need to have a source of energy that bacterial life can exploit, as well as a standing source of liquid water. At its surface, the temperature of Neptune dips down to 55 Kelvin. That’s very cold, and there’s no way liquid water could exist.

Deep within Neptune and Uranus, it rains diamonds—or so astronomers and physicists have suspected for nearly 40 years. The outer planets of our Solar System are hard to study, however. Beyond the lingering mystery of the diamond rain, there’s a big loss in our failure to study Uranus and Neptune inside and out.