The sun

The Parker Solar Probe is approaching the Sun. Image: NASA

NASA's Parker Solar Probe makes history in its closest pass to the Sun

The Parker Solar Probe reached a distance of only 6.1 million km from the Sun, at a record speed of 690,000 km/h, in a groundbreaking operation to improve our understanding of our planet
Plasma loops above sunspots, visible in UV light. Credit: DKIST/NSO

Artificial intelligence reveals secrets of the Sun's atmosphere

Researchers at the University of Hawaii are using the world's largest solar telescope and artificial intelligence to study plasma above sunspots, improving understanding of the sun and space predictions.
Eddy currents at the solar poles. The image was prepared using DALEE and is not a scientific image

Magnetic eddies at the poles of the Sun

Illustration of the anatomy of the sun. Credit: ESA–S.Poletti

When the sun doesn't behave accordingly: the mysterious time gaps in solar flares challenge scientists

Researchers have identified significant time gaps in emissions in solar flares that challenge the accuracy of current models of solar flares, and point to possible alternative energy transfer mechanisms
A close-up of the intense X7.1 solar flare on October 1, 2024, by NASA's Solar Dynamics Observatory. Credit: NASA/SDO

A strong solar flare was recorded on October 1, 2024

NASA's Solar Dynamics Observatory (SDO) has recorded one of the strongest outbursts in the current solar cycle, with the potential to impact technological systems on Earth and in space
The cover of the book "The Milky Way - Autobiography of our galaxy.

 Berea Chapter from: "The Milky Way Autobiography of Our Galaxy" by Dr. Moya McTeer, Mater Publishing

Chapter from: "The Milky Way Autobiography of Our Galaxy" by Dr. Moya Maktir, Mater Publishing. Translation: Adi Marcuse Hess, Editing: Helit Yanai
Curiosity's rear Hazcam recorded the shadow of the rover's rear in a 12-hour view toward the Gale Basin floor. Several factors caused several artifacts in the image, including a black spot, the sun's distorted appearance, and rows of white pixels extending from the sun. NASA/JPL-Caltech

Viewing a full day on Mars, sunrise to sunset

Curiosity's rear Hazcam recorded the shadow of the rover's rear in a 12-hour continuous view from sunrise to sunset toward the Gale Basin floor
An artist's rendering of a potential companion to the Sun, which theorists believe evolved in the Sun's natal cluster and then was lost. If proven, the companion sun theory would add credence to theories that the Oort cloud formed as we see it today, and the ninth planet was captured rather than formed in its place. Qualifying: M. Weiss

Did the sun start life as half of a pair of twin stars?

Harvard University scientists say the Sun may once have had a binary companion with a similar mass. If the theory is confirmed, the presence of an ancient companion star increases the likelihood that the Oort cloud formed as it is observed
the sun From jumpstory

Is our sun aging?

The simulation of the moon creates a solar eclipse over parts of the earth. Source: NASA's Scientific Visualization Studio.

When the sun goes dark: 5 questions and answers about solar eclipses

A total solar eclipse will occur today, August 21, across the US. Shannon Schmoll, director of the Abrams Planetarium at Michigan State University, explains why and how solar eclipses occur, and what we can learn from them.
Comparison of sizes of different types of stars. From left to right: a red dwarf, with a mass of about 0.1 that of the Sun; "yellow dwarf", like our sun; A "blue dwarf" of about 8 solar masses; and the giant star R136a1, which has about 300 solar masses. Source: ESO/M. Kornmesser.

Brighter than the sun, hotter than the summer in Israel

A giant solar flare recorded by NASA's Solar Dynamics Observatory. Source: NASA/SDO/AIA/GoddarSpace Flight Center.

Detectives following the sun

Illustrating the tide caused by the moon. Illustration: shutterstock

Prince of Tides

Earth's magnetic field, composite of several NASA images. Photo: Christine Daniloff, MIT

Plasma plumes protect the Earth from the damaging solar storms

life in the universe Illustration: shutterstock

Earth will only be habitable for another 1.75 billion years

The surface of the current leaving the sun and spreading in the solar system. Illustration: from Wikipedia

What will happen when the sun's magnetic poles are reversed?

A chart of the seasons as they appear in the Northern Hemisphere. Right: the winter solstice in December. From Wikipedia

Today is the autumnal equinox and why, although technically this is true, there is really no equinox between day and night

This year the exact time of the autumnal equinox is September 22 at 14:49 GMT
Solar flare on 23/1/2010 in the morning (Israel time) on the upper right side. Photo: NASA

A strong solar storm reached Earth, but caused no damage

Artist's perception - the sun as a changing star that seems very fixed to us

Trying to understand the sun

The earth in the four seasons in the northern latitudes in relation to the sun. Public domain illustration, from Wikipedia

The summer solstice - a short lesson in astronomy

Artist's perception - the sun as a changing star that seems very fixed to us

The Age of the Sun and Darwinism

The effect of solar storms on Earth. Image: NASA

NOAA has assumed responsibility for solar storm warnings

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20 Future NASA Missions

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Solar winds are caused by its magnetic field and that of the planets

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Lightning activity on the African continent reveals the solar cycle

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The strange flames of the sun

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The fear: deadly asteroids stuck in Earth's Lagrange points

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The journey to the sun

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Finally a spot of sun

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

A weak solar cycle will keep space debris longer in orbit

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The Ulysses mission comes to an end after 17 years

Solar flare, April 12-13, 2010, photographed by NASA's Stereo spacecraft

NASA plans to build a spacecraft to visit the sun

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Is there a date for the next great extinction?

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Urban activity reduces the intensity of solar radiation

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The source of the solar wind was discovered

Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The Ulysses mission to explore the sun comes to an end due to malfunctions in the electrical system that cannot be repaired

After more than 17 years of studying the poles of the sun and the sun's effect on its environment, the spacecraft succumbs to the hostile environment in space
Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The Ulysses spacecraft passes over the sun's north pole