Kelt-9b is in what astronomers call a 'torch orbit'. Too close to it's parents star and losing mass, if we were close enough we would likely see streams of heated material escape from outer atmosphere of that exoplanet and flowing inwards towards the star.
The Oort Cloud is a region of our Solar System whose existence was first proposed by Dutch astronomer Jan Oort in 1950. The Oort Cloud was proposed as an explanation for the source of what is known as 'long-period comets'. Astronomers had long been aware of comets entering the solar system that were short-period (like Halley's Comet with a period of some 76 years) and long-period comets. As the name suggests, the short-period comets have orbits that are much shorter and take less time to complete than the long-period comets, but that's not the only distinction. You see, most objects in the inner solar system (including the planets and the Sun) occupy much the same 'plane', reflecting the plane of the molecular cloud of gas and dust that originally formed our solar system. Long-period comets don't adhere to the solar system's plane - they are found to originate from all directions in the sky and come screaming into the inner solar system before executing a near hyperbolic orbit and heading off into distant space. Where were these objects coming from? Astronomers ran the numbers of how many comets they believed were entering the inner solar system based on observations so far. They accounted for the fact that some of these comets would develop orbits that would throw themselves either into the Sun or toss themselves out of the solar system forever. In short, astronomers' calculations suggested that the amount of comets should have well and truly run out by now, some 4.5 billion years after the Solar system formed and yet the comets were clearly still coming! Jan Oort proposed that a halo of comets exists at the extreme outer boundaries of our Solar System, way, way WAY beyond even the farthest sentinels of the likes of Pluto and extending an almost unimaginable distance outwards. This vast shell encompass the entire solar system like a sphere and contain an uncountable number of icy and rocky objects ranging from perhaps boulder size to perhaps the size of worlds like Pluto or Ceres. The hypothesised distance to the Oort Cloud is hard to imagine - but it could start at several thousand astronomical units and extend for more than a lightyear from the Sun. Huge distances, encompassing a massive volume. We don't, to my knowledge; have direct proof of the Oort Cloud, but I believe it's existence is fairly well established among astronomers as a repository and source from which long-period comets originate.
If planets are too dangerous for human to actually survive on how do you find out this information? who gets close enough to actually find out what type of planet, what it is made of and how do they know the temperature of these planets. if it is acidity as he claimed then who found that out and how
There are many tools utilized to discover details of celestial bodies without sending humans. Flybys of probes, using radars from earth to map a planet, and land rovers are predominantly the three best methods
So these are just assumptions by astronomers and not a mere fact or an actual fact? I am curious as to how do they know so much about these planets but no one is actually able to get close enough. Not that I don't believe the information I am curious as to how do they find this information out
السلام عليكم اخي هاشم الغيلي معك د ضيف الله الانسي محافظه ذمار بكارليوس Biochemistry جامعه ذمار لعام2015_2016 اريد أن أكمل دراستي هل ممكن المساعده باي دوله تستطيع المساعده انت تحياتي قال رسول الله صلى الله عليه وسلم (( الأيمان يمان والحكمة يمانية)) تحياتي لك اخي ربنا يزيدك علما
بارك الله فيك يا دكتور هاشم الغيلي 👍👍👍🇾🇪
ياابن بلدي لو كانت الترجمة متاحة
وفقك الله واعانك وايدك وبصرك
شغل الترجمه
Always Awesome😇🙏😇
ماشاءلله 👌🏻
Kelt-9b is in what astronomers call a 'torch orbit'. Too close to it's parents star and losing mass, if we were close enough we would likely see streams of heated material escape from outer atmosphere of that exoplanet and flowing inwards towards the star.
🙏Sir Explain what is a Oort cloud and what systems exist outside the Oort cloud..
The Oort Cloud is a region of our Solar System whose existence was first proposed by Dutch astronomer Jan Oort in 1950. The Oort Cloud was proposed as an explanation for the source of what is known as 'long-period comets'. Astronomers had long been aware of comets entering the solar system that were short-period (like Halley's Comet with a period of some 76 years) and long-period comets. As the name suggests, the short-period comets have orbits that are much shorter and take less time to complete than the long-period comets, but that's not the only distinction. You see, most objects in the inner solar system (including the planets and the Sun) occupy much the same 'plane', reflecting the plane of the molecular cloud of gas and dust that originally formed our solar system. Long-period comets don't adhere to the solar system's plane - they are found to originate from all directions in the sky and come screaming into the inner solar system before executing a near hyperbolic orbit and heading off into distant space. Where were these objects coming from? Astronomers ran the numbers of how many comets they believed were entering the inner solar system based on observations so far. They accounted for the fact that some of these comets would develop orbits that would throw themselves either into the Sun or toss themselves out of the solar system forever. In short, astronomers' calculations suggested that the amount of comets should have well and truly run out by now, some 4.5 billion years after the Solar system formed and yet the comets were clearly still coming! Jan Oort proposed that a halo of comets exists at the extreme outer boundaries of our Solar System, way, way WAY beyond even the farthest sentinels of the likes of Pluto and extending an almost unimaginable distance outwards. This vast shell encompass the entire solar system like a sphere and contain an uncountable number of icy and rocky objects ranging from perhaps boulder size to perhaps the size of worlds like Pluto or Ceres. The hypothesised distance to the Oort Cloud is hard to imagine - but it could start at several thousand astronomical units and extend for more than a lightyear from the Sun. Huge distances, encompassing a massive volume.
We don't, to my knowledge; have direct proof of the Oort Cloud, but I believe it's existence is fairly well established among astronomers as a repository and source from which long-period comets originate.
Nice
Well, aren't (almost) all other planets deadly for us?
If planets are too dangerous for human to actually survive on how do you find out this information? who gets close enough to actually find out what type of planet, what it is made of and how do they know the temperature of these planets. if it is acidity as he claimed then who found that out and how
There are many tools utilized to discover details of celestial bodies without sending humans. Flybys of probes, using radars from earth to map a planet, and land rovers are predominantly the three best methods
Goodone Chelsea
So these are just assumptions by astronomers and not a mere fact or an actual fact? I am curious as to how do they know so much about these planets but no one is actually able to get close enough. Not that I don't believe the information I am curious as to how do they find this information out
السلام عليكم
اخي هاشم الغيلي
معك د ضيف الله الانسي محافظه ذمار
بكارليوس Biochemistry
جامعه ذمار لعام2015_2016
اريد أن أكمل دراستي هل ممكن
المساعده باي دوله تستطيع المساعده انت تحياتي
قال رسول الله صلى الله عليه وسلم (( الأيمان يمان والحكمة يمانية)) تحياتي لك اخي ربنا يزيدك علما
Ok, name another planet that won't kill me, illogical title.