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  2. A Cold Moon and Mars in retrograde? How to watch tonight’s ...

    www.aol.com/news/cold-moon-mars-retrograde-watch...

    A Cold Moon only happens once a year while Mars is in retrograde every 26 months. On Wednesday night, the two events will collide.

  3. Don't Miss it! The Moon and Mars Will Form a Rare ... - AOL

    www.aol.com/dont-miss-moon-mars-form-162036046.html

    Mars and the moon will be about four degrees apart on Wednesday evening. Christophe Lehenaff / Getty Images From northern lights sightings to meteor showers and a supermoon , November has been an ...

  4. The Full Moon Is Almost Here. Astrologers Say Two Signs Will ...

    www.aol.com/full-moon-almost-astrologers-two...

    The Full Cold Moon in Gemini is all about the future. You’ll have deep thoughts and big dreams now that will help you set plans in motion for where you want to be in a few months and even a year ...

  5. Neptune - Wikipedia

    en.wikipedia.org/wiki/Neptune

    Neptune brightened about 10% between 1980 and 2000 mostly due to the changing of the seasons. [177] Neptune may continue to brighten as it approaches perihelion in 2042. The apparent magnitude currently ranges from 7.67 to 7.89 with a mean of 7.78 and a standard deviation of 0.06. [18] Prior to 1980, the planet was as faint as magnitude 8.0. [18]

  6. Ice giant - Wikipedia

    en.wikipedia.org/wiki/Ice_giant

    Because during their formation Uranus and Neptune incorporated their material as either ice or gas trapped in water ice, the term ice giant came into use. [ 2 ] [ 4 ] In the early 1970s, the terminology became popular in the science fiction community, e.g., Bova (1971), [ 5 ] but the earliest scientific usage of the terminology was likely by ...

  7. Extraterrestrial atmosphere - Wikipedia

    en.wikipedia.org/wiki/Extraterrestrial_atmosphere

    The average surface pressure on Mars is 0.6-0.9 kPa, compared to about 101 kPa for Earth. This results in a much lower atmospheric thermal inertia, and as a consequence Mars is subject to strong thermal tides that can change total atmospheric pressure by up to 10%. The thin atmosphere also increases the variability of the planet's temperature.

  8. Water on terrestrial planets of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Water_on_terrestrial...

    The current Venusian atmosphere has only ~200 mg/kg H 2 O(g) in its atmosphere and the pressure and temperature regime makes water unstable on its surface. Nevertheless, assuming that early Venus's H 2 O had a ratio between deuterium (heavy hydrogen, 2H) and hydrogen (1H) similar to Earth's Vienna Standard Mean Ocean Water of 1.6×10 −4, [7] the current D/H ratio in the Venusian atmosphere ...

  9. Look up! Mars expected to light up night sky

    www.aol.com/article/2014/04/08/look-up-mars...

    That's actually the planet Mars. Here's HLN: 'The planet is expected to line up with Earth and. If you catch yourself looking up at the night sky this evening, you might notice what looks like a ...