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The sun

Sunspot up close. Photo: NASA

NOAA satellites detected a strong solar storm

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In late March 2024, NOAA satellites detected strong solar activity, including a powerful solar flare and coronal mass ejection (CME), which led to the strongest geomagnetic storm since 2017
NASA aircraft trajectory over the Pacific Ocean and Mexico. Courtesy of Prof. Amir Caspi

Exclusive: An interview with the Israeli researcher who will send a camera to study the corona to a high altitude during the solar eclipse

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Prof. Caspi, from the University of Colorado presents the results of the experiments in the solar eclipse of 2017, on the multi-channel camera that will fly on a NASA plane
Image of the "smiling" Sun taken by NASA's Solar Dynamic Observatory on October 26, 2022. Credit: NASA/SDO

NASA's SDO (Solar Dynamic Observatory) spacecraft photographed the sun "smiling"

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These dark spots on the Sun, visible in ultraviolet light, are called coronal holes and are areas where fast solar wind bursts out into space. By chance, they managed to take a photo that looked like the sun was smiling.
A coronal mass ejection erupting from our Sun on August 31, 2012. Photo: NASA/GSFC/SDO

Has the "heat convection" puzzle of the sun been solved?

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Scientists are making another small step towards cracking the mysteries of space weather
sun storms Photo: depositphotos.com

Israeli researchers manage to predict solar storms days in advance thanks to artificial intelligence

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Weather forecasting in space, which may affect the activity of satellites, the health of astronauts and the power grids about 24 hours before the occurrence, can be done using machine learning methods that rely on past events in combination with measurements in the atmosphere
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?

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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 and the ninth planet was trapped rather than formed within the solar system.
the sun From jumpstory

Is our sun aging?

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Abell 39, object number 39 in the catalog of large nebulae discovered by George Abell in 1966 is of a large nebula discovered by George Abell in 1966, is a fine example of a planetary nebula. This photograph was taken in 1997 from the Kite Peak National Observatory in Arizona through a blue-green filter that isolates the light emitted by the oxygen atoms in the nebula at a wavelength of 500.7 nm. The diameter of the nebula is about five light years, and the thickness of the spherical shell is about a third of a light year. The nebula itself is about 7,000 light-years from Earth in the constellation Hercules. Credit: TARector (NRAO/AUI/NSF and NOAO/AURA/NSF) and BAWolpa (NOAO/AURA/NSF) WIYN

What will happen when our sun dies?

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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

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Parker Solar Probe simulation. Source: Johns Hopkins University Applied Physics Laboratory.

Touch the sun: NASA will launch a spacecraft closer than ever to the sun

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Astronomical events in ancient writings. Illustration: Kyoto University

Evidence of strong solar storms in documents and poems from Japan and China

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An artist's illustration of a possible ninth planet in our solar system. Illustration: Robert Hart, Clatech

Is the strange inclination of the sun caused by the influence of the ninth planet?

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Sunspot up close. Photo: NASA

If you have a stain

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Illustrating the tide caused by the moon. Illustration: shutterstock

Prince of Tides

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A strong solar storm that hit the Earth on June 22, 2015. Photo: NASA

A 6th degree solar storm hit the Earth * disrupting the power grids and interfering with the reception of GPS signals

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Prof. Yoav Yair and his team members with the balloon participating in the experiment that monitors the electricity levels in the atmosphere. Photo: Herzliya Interdisciplinary Center

An act in five scientific balloons

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

Plasma plumes protect the Earth from the damaging solar storms

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The stars are similar to the sun. Figure: ESO

A glimpse into the future of the solar system: a star similar to the sun but twice its age

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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?

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Image of the sun from April 12, 2013, photo: SDO/AIA

The sun does not cause earthquakes

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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

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

Trying to understand the sun

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A hole in the sun's corona, as photographed yesterday (27/11/2011) by the SDO spacecraft. NASA monitors space 'weather' events

"Prediction of solar storms and their impact on Earth is improving: a two-day warning instead of an hour, but there is still room for improvement in the models"

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This is what Dr. Ofer Cohen of the Harvard-Smithsonian Observatory says, during the "Solar Cycle No. 24 and its Impact on Ground and Space Infrastructures" seminar that took place yesterday at the Open University
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

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The last image of the Sun before stereo spacecraft aligned themselves in opposite directions and were able to see the entire Sun from a completely different angle than seen on Earth. The gap is seen as a line cutting through the Sun in this image from February 2, 2011. The gap closed on February 6

The sun - from today in XNUMXD photography courtesy of Stereo spacecraft

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