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  2. List of unsolved problems in astronomy - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Why is the Sun's corona so much hotter than the Sun's surface? Why is the magnetic reconnection effect many orders of magnitude faster than predicted by standard models? Space weather prediction: How does the Sun produce strong southward-pointing magnetic fields in solar coronal mass ejections that lead to geomagnetic storms?

  3. A powerful solar storm is due to hit Earth on New Year's Eve ...

    www.aol.com/powerful-solar-storm-due-hit...

    The sun recently hurled two coronal mass ejections toward Earth. The first is expected to reach us on Tuesday sparking aurora across the northern US. A powerful solar storm is due to hit Earth on ...

  4. List of unsolved problems in geoscience - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Was there ever a collision of the Earth with another planet Theia, giving birth to the Moon? [1] There is compelling evidence, such as measures of a shorter duration of the Earth's rotation and lunar month in the past, pointing to a Moon much closer to Earth during the early stages of the Solar System.

  5. NASA is about to 'touch' the sun. Here's what you need to know.

    www.aol.com/nasa-touch-sun-heres-know-002030206.html

    It's like if you put the Earth and sun at opposite ends of an American football field: "Parker Solar Probe is on the 4-yard line approaching the sun," Joe Westlake, Director of NASA's Science ...

  6. Massive solar storm to hit Earth today with danger of radio ...

    www.aol.com/news/massive-solar-storm-hit-earth...

    Region 3500 on our Sun just fired a near X-class flare and launched a strong Earth-directed #solarstorm. Waiting for coronagraph imagery, but it looks like this storm could arrive by December 1.

  7. Faint young Sun paradox - Wikipedia

    en.wikipedia.org/wiki/Faint_young_Sun_paradox

    More recent modeling studies have shown that the Sun is currently 1.4 times as bright today than it was 4.6 billion years ago (Ga), and that the brightening has accelerated considerably. [8] At the surface of the Sun, more fusion power means a higher solar luminosity (via slight increases in temperature and radius), which is termed radiative ...

  8. Newly-released photos capture the sun in highest resolution ...

    www.aol.com/newly-released-photos-capture-sun...

    The Solar Orbiter, which launched in February 2020, imaged the sun's surface from less than 46 million miles away – or about halfway between the sun and Earth. All taken within about four hours ...

  9. Lists of unsolved problems - Wikipedia

    en.wikipedia.org/wiki/Lists_of_unsolved_problems

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