Prof. Niedzielski's team have been working on this subject for years. Thanks to precise observations of the sky, they have managed to discover 26 stars around which planets revolve. These are usually planetary systems much older than ours. Their suns are mostly red giants . An exception is the Solaris system and the Pirx, a star similar to the Sun (although slightly less massive and cooler) and its planet, discovered in 2009.
"The red giant is a star that has burnt out hydrogen in its interior as a result of nuclear reactions and is rebuilding its internal structure to ignite helium burning nuclear reactions," explains Prof. Niedzielski. "Such a star shrinks in its central part, where the temperature starts to rise. Its outer areas expand significantly and cool down. Initially a yellow star, like the Sun, becomes red and huge. Hence the name of this type of stars.
Many things are taking place:
Eyes to the sky: Full snow moon, 3 planets visible this weekend
ST. LOUIS ( KTVI ) — February’s Snow Moon is this weekend and the full moon reaches its peak in the early morning hours Saturday. You may also be able to see a trifecta of planets.
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“Before calendars and timekeeping, that repeating cycle of the moon in the sky is how many people first were able to keep track of time and they noticed patterns,” said Will Snyder, the planetarium manager at the Saint Louis Science Center. “At certain times of year, we’d have more snow when this moon was up or it was time to harvest when this one was. And it’s a tradition that we still carry on until this day.”
Jupiter-Mercury conjunction: How to spot planets as they appear to cross paths on March 5 - ABC11
Planetary science intern leads study of Martian crust | EurekAlert! Science News
The planet Mars has no global magnetic field, although scientists believe it did have one at some point in the past. Previous studies suggest that when Mars' global magnetic field was present, it was approximately the same strength as Earth's current field.
Ahmed AlHantoobi, an intern working with Northern Arizona University planetary scientists, assistant professor Christopher Edwards and postdoctoral scholar Jennifer Buz in NAU's Department of Astronomy and Planetary Science, led a study looking for answers to explain these magnetic anomalies. The team explored the relationships between the strength of the magnetic field on the surface and the composition of the crust in the Terra Sirenum-Terra Cimmeria region of Mars.
Not to change the topic here:
Elusive pairing of planets to glow together before daybreak Friday
The first week of March will conclude with a celestial meet-up of the smallest and largest planets in the solar system, but it will only be visible to those up well before daybreak and under a cloud-free sky.
On the morning of Friday, March 5, Mercury and Jupiter will appear side-by-side in an astronomical event called a conjunction. This type of conjunction is not particularly rare and is the second time this year that Mercury and Jupiter are converging in the night sky.
The photo shows a computer-generated image, not an actual picture of three planets viewed from
Among those sharing the image was a Facebook account in the US called "Rogue Nasa", which changed its name from "Rogue News Media" in 2017. The post has been shared more than 21,000 times since it was published on September 27, 2020.
"Earth, Venus and Jupiter as seen from Mars," reads the caption on the post featuring an image that appears to be cropped out from a similar but larger version .
However, AFP Fact Check found that the image claiming to show the trio of planets visible from Mars is computer-generated and has been shared out of context.
Planetary defense experts use infamous asteroid Apophis to practice spotting dangerous space
Earth's most recent brush with asteroid danger was eight years ago, when a space rock the size of a six-story building came seemingly out of nowhere, injuring 1,200 people when it exploded over Chelyabinsk , Russia.
Now, scientists are using this month's flyby of the infamous asteroid Apophis to test their responses to potentially hazardous space rocks, honing the fine art of planetary defense. Planetary defense focuses on identifying asteroids and comets that hang out around Earth, mapping their precise paths and seeing how their orbits compare with Earth's.
Happening on Twitter
An international team has discovered yet another three extrasolar planets. These planets revolve around the stars t… https://t.co/wVsXPZb4Tb SETIInstitute (from Mountain View, CA) Wed Mar 03 00:16:02 +0000 2021
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