On June 20, 2019, Hubble Space Telescope snapped this beautiful portrait of Saturn and its rings at the ringed planet’s closest approach to Earth. The image was published on September 12, 2019.Continue reading Hubble’s last portrait of Saturn and its rings
If you read Isaac Asimov’s 1986 novel “Foundation and Earth”, you’ll remember how the main characters of the book (Councilman Golan Trevize, historian Janov Pelorat, and Gaian Bliss) were amazed by Saturn’s rings. They were thinking the gas giant with preeminent rings in old stories was just a myth. But after seeing Saturn, they made sure that they found the solar system which contains the Earth, the original home of humanity.Continue reading Saturn on steroids: J1407b
Hubble Space Telescope was launched on April 24, 1990, and entered service on May 20, 1990. Since then, it has observed all the planets in our Solar System, apart from Earth and Mercury. Earth is far better studied by geologists on the ground and specialized probes in orbit. Hubble can’t observe Mercury as it is too close to the Sun, whose brightness would damage the telescope’s sensitive instruments.
Here are the best images of the planets (except Earth and Mercury) and some non-planets of our Solar System through the eye of Hubble Space Telescope.Continue reading Solar System through the eyes of Hubble Space Telescope
Earth, our blue planet is an oasis in the vast, cold, and dark space. It is the only planet we know of that can support life. The fossil record tells us that life on Earth has lasted at least 3.5 billion years (the Earth is about 4.54 billion years old), with the oldest physical traces of life dating back 3.7 billion years. And, if some kind of disaster doesn’t intervene, our planet should continue to host life for at least another 1.75 billion years. Here are the 8 things that make life on Earth possible.Continue reading 8 Things that make Life on Earth Possible
There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Two of the largest moons are bigger than the smallest planet, Mercury. Here are the top 10 largest non-planets in our solar system (eight of them are moons and two of them are dwarf planets).Continue reading Top 10 Largest Non-Planets In Our Solar System
Have you ever wondered how the Sun would look from the other planets in our solar system? Here is a visual showing the apparent size of the Sun from the planets of the solar system, including Earth.Continue reading Apparent Size of the Sun from other planets
NASA Goddard Planetary Scientist James O’ Donoghue created a nice animation showing the sidereal days and axial tilts of the solar system planets.Continue reading The sidereal days and axial tilts of the Planets
Previously I posted articles titled “If The Moon Were Only 1 Pixel – A Tediously Accurate Map Of The Solar System” and “A Scale Model Of Solar System Drawn In The Desert And The Result Is Stunning”. Since the human brain cannot deal with the really large numbers, these articles provide amazing ways to understand how big actually our Solar System is.
Now, in his YouTube channel, The Science Asylum, physicist Nick Lucid provides yet another scale model of the solar system. A very nice video conceptualizing how mind-bogglingly big our solar system (and space) is.Continue reading Watch: Yet Another Scale Model of the Solar System
This size comparison of the Sun and the planets in our solar system is going around frequently, but it’s still amazing to see it. Created by the San Francisco-based artist Roberto Ziche,Continue reading Size comparison of the Sun and the planets
From blob-like jellyfish to rock-like lichens, our planet teems with such diversity of life that it is difficult to recognise some organisms as even being alive. That complexity hints at the challenge of searching for life as we don’t know it – the alien biology that might have taken hold on other planets, where conditions could be unlike anything we’ve seen before. ‘The Universe is a really big place. Chances are, if we can imagine it, it’s probably out there on a planet somewhere,’ said Morgan Cable, an astrochemist at the Jet Propulsion Laboratory in Pasadena, California. ‘The question is, will we be able to find it?’Continue reading To find aliens, we must think of life as we don’t know it