Mercury

Uranus and Neptune are the two most distant known major planets in our solar system. Both are now considered ice giants. Both are fundamentally different from the larger gas giants Jupiter and Saturn, and from smaller rocky worlds like Earth.

Kepler-452b (a planet sometimes quoted to be an Earth 2.0 or Earth’s Cousin based on its characteristics; also known by its Kepler Object of Interest designation KOI-7016.01) is a super-Earth exoplanet orbiting within the inner edge of the habitable zone of the Sun-like star Kepler-452, and is the only planet in the …

Among the stunning variety of worlds in our solar system, only Earth is known to host life. But other moons and planets show signs of potential habitability.

All of the planets, except for Earth, were named after Greek and Roman gods and godesses. Jupiter, Saturn, Mars, Venus and Mercury were given their names thousands of years ago. The other planets were not discovered until much later, after telescopes were invented.

The eight planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

As of June 2021, no observation of Planet Nine had been announced. While sky surveys such as Wide-field Infrared Survey Explorer (WISE) and Pan-STARRS did not detect Planet Nine, they have not ruled out the existence of a Neptune-diameter object in the outer Solar System.

Data from NASA’s Solar Dynamics Observatory revealed a vast region where the sun’s magnetic field has opened up, creating a gap in the sun’s outer atmosphere, called the corona. This region, also known as a coronal hole, allows charged particles to escape and flow toward Earth in an increased solar wind.

Coronal holes are part of the Sun’s corona and are constantly changing and reshaping because the corona is not uniform. The Sun contains magnetic fields that arch away from areas in the corona that are very thin due to the lower levels of energy and gas, which cause coronal holes to appear when they do not fall back.

Coronal holes are dark spots visible on the Sun’s surface where the Sun’s corona is colder and less dense. NOAA explains that coronal holes are the dark spots that are visible on the surface of the Sun. They are areas where the Sun’s corona (read: the outermost part of the Sun’s atmosphere) is colder and less dense.

Coronal holes are areas in the Sun’s atmosphere that appear dark in X-ray and ultraviolet images of the Sun. The plasma (electrified gas) in these regions of the Sun’s corona (it’s upper atmosphere) is cooler and more dense than in other parts of the corona.

solar storms can be dangerous to our technologies. When a coronal mass ejection, or CME, strikes Earth’s atmosphere, it causes a temporary disturbance of the Earth’s magnetic field. The storm on the sun causes a type of storm on the Earth, known as a geomagnetic storm.

A sun halo is a rare optical phenomenon in which a ring is formed around the sun as light gets refracted through suspended ice crystals in the atmosphere. A similar rainbow-coloured circular halo was also witnessed by the people in Bengaluru last month.

Most of the energy is spread over frequencies outside the visual range and so the majority of the flares are not visible to the naked eye and must be observed with special instruments. X-rays and UV radiation emitted by solar flares can affect Earth’s ionosphere and disrupt long-range radio communications.

Fortunately, no matter what, flares do not have a significant effect on us here on Earth. The Earth’s atmosphere more or less acts as a shield to prevent the cosmic radiation from reaching us. There can be measurable effects at ground level, but the amount of radiation is pretty insignificant.

If an enormous solar flare like the one that hit Earth 150 years ago struck us today, it could knock out our electrical grids, satellite communications and the internet. A new study finds that such an event is likely within the next century.

eight minutes

The fastest Earth-directed CMEs can reach our planet in as little as 15-18 hours. Slower CMEs can take several days to arrive. They expand in size as they propagate away from the Sun and larger CMEs can reach a size comprising nearly a quarter of the space between Earth and the Sun by the time it reaches our planet.

The Sun has a cycle lasting roughly 11 years during which its activity is tracked by counting how many sunspots are counted by solar scientists. That’s been done since 1755, which is classed as Solar Cycle 1.

Once outside the Earth’s magnetosphere, astronauts are exposed to the full blast of the ever-flowing solar wind. They could then suffer serious consequences from solar energetic particles even within their spacecraft, resulting in cataracts, skin cancer or even lethal radiation poisoning.

By that point, all life on the Earth will be extinct. The most probable fate of the planet is absorption by the Sun in about 7.5 billion years, after the star has entered the red giant phase and expanded beyond the planet’s current orbit.

Solar storms could destroy power grid transformers, which can be as big as a house, cost more than $10 million and take 12 to 18 months to replace.

If a massive solar storm hit the earth directly, the entire planet would go into darkness. The solar storm is a giant cloud of hot plasma and electromagnetic radiation that the sun ejects when it opens its coronal holes. Within 30 minutes, the flares would reach Earth’s magnetosphere and trigger a geomagnetic storm.