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Astronomers just found a frozen world on a 25,000-year orbit—hidden in plain sight and ready to rewrite the outer solar system. ================================================================ Image Credit: images of dwarf planets from NASA/JPL-Caltech; image of 2017 OF201 from Sihao Cheng et al. | The Daily Galaxy --Great Discoveries Channel ================================================================= A distant, icy world has just been added to our solar system’s official roster, and its strange orbit might challenge one of the biggest space mysteries of our time. According to a study published on arXiv, the object—known as 2017 OF201—is not just any distant rock. It’s a trans-Neptunian object (TNO) that could...

A stunning celestial event is about to unfold, and skywatchers worldwide are preparing for a once-in-a-lifetime sight. On February 28, 2025, all seven planets of our solar system—Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune—will align in a rare planetary parade. But beyond its astronomical wonder, could this alignment carry a deeper, biblical significance?

The best chance to see as many planets as possible will be just after sunset on Tuesday, Wednesday, Thursday and Friday. Four of the planets - Mercury, Venus, Jupiter, and Mars - will be visible to the naked eye. Saturn will be harder to see because it will be low in the horizon. You will need a telescope to spot the other two planets - Uranus and Neptune. A good view of the horizon and clear skies will offer the best chance of spotting them all. However, the window to see all seven planets will be very brief. Dr Edward...

Just when you think humanity has the technology for a thorough probe of Uranus, abnormal winds is forcing scientists to rethink everything we thought we knew about this distant gaseous giant. New peer-reviewed research published in Nature Astronomy suggests that the atmosphere of the solar system’s seventh planet has “anomalous characteristics” caused by intense solar winds. The information analyzed by astronomers was collected during the 1986 flyby of Voyager 2, humanity’s only probe into the gaseous giant Uranus. “The data collected about Uranus was a little confusing and didn’t make sense,” said Max Gilbraith, planetarium coordinator for the University of...

Most people consider Saturn's awe-inspiring system of rings that encircle the gas giant to be the most fascinating and iconic celestial feature in our solar system..... A fast-approaching and significant cosmic event will soon dramatically alter our view of this magnificent planet. Come March 2025, Saturn's majestic rings will become virtually invisible to earth-based observers. This phenomenon occurs due to the unique tilt of Saturn's axis, which will position the rings edge-on to our line of sight.... Thankfully, this isn't a permanent change...

Have you seen the “planetary parade” after sunset? It’s getting a lot of media attention, partly because Jupiter is about to sink into the Sun’s glare and ruin it, but you can glimpse some to all of the five planets naked-eye and with binoculars on any night this week. Mercury, Jupiter, Venus, Uranus and Mars are all visible right after sunset. Get somewhere high with a clear view of the western horizon to watch the sunset. After sunset have a look for Jupiter and Mercury very close to the horizon. You may need binoculars. Above them will be a very...

March is going to be a great time to planet gaze. Five planets will be visible on March 28: Venus, Jupiter, Mars, Mercury and Uranus. Venus will be one of the easier ones to see. It will be the biggest planet in the sky. Look to the west to see Venus after sunset. Mars will also be easier to identify. It will appear red and bright, high in the southwest sky.

Our Solar System is a pretty busy place. There are millions of objects moving around – everything from planets, to moons, to comets, and asteroids. And each year we're discovering more and more objects (usually small asteroids or speedy comets) that call the Solar System home. Astronomers had found all eight of the main planets by 1846. But that doesn't stop us from looking for more. In the past 100 years, we've found smaller distant bodies we call dwarf planets, which is what we now classify Pluto as. The discovery of some of these dwarf planets has given us reason...

Take a grand tour of the solar system tonight (Dec. 28) as each of the planets in the solar system will be visible at the same time. As 2022 comes to an end, skywatchers can take in the rare sight of all of the planets in our solar system (aside from Earth) together in the sky. Mercury, Venus, Mars, Jupiter and Saturn are all currently visible simultaneously with the naked eye. The two outermost planets, Uranus and Neptune, can meanwhile be observed with binoculars or a telescope. To celebrate this excellent skywatching opportunity, the Virtual Telescope Project is hosting a...

The climate crisis presents a huge challenge to all people on Earth. It has led many scientists to look for exo-planets, planets outside our solar system that humans could potentially settle. The James Webb Space Telescope was developed as part of this search to provide detailed observational data about earth-like exo-planets in the coming years. A new project, led by Dr. Assaf Hochman at the Fredy & Nadine Herrmann Institute of Earth Sciences at the Hebrew University of Jerusalem (HU), in collaboration with Dr. Paolo De Luca at the Barcelona Supercomputing Center and Dr. Thaddeus D. Komacek at the University...

Explanation: How does your favorite planet spin? Does it spin rapidly around a nearly vertical axis, or horizontally, or backwards? The featured video animates NASA images of all eight planets in our Solar System to show them spinning side-by-side for an easy comparison. In the time-lapse video, a day on Earth -- one Earth rotation -- takes just a few seconds. Jupiter rotates the fastest, while Venus spins not only the slowest (can you see it?), but backwards. The inner rocky planets across the top underwent dramatic spin-altering collisions during the early days of the Solar System. Why planets spin...

Graphic on the different types of "exoplanets" which the new James Webb telescope will be investigating to determine the composition of their atmospheres and the presence of water. The first stunning images from the James Webb Space Telescope were revealed this week, but its journey of cosmic discovery has only just begun. Here is a look at two early projects that will take advantage of the orbiting observatory's powerful instruments. The first stars and galaxiesOne of the great promises of the telescope is its ability to study the earliest phase of cosmic history, shortly after the Big Bang 13.8...

According to NASA, most stargazers in America will have a great chance to see two planets in close proximity during the predawn night sky from May 27 through May 30. While Jupiter and Mars will still be quite far from each other, they will appear to be quite close during what is called a planetary conjunction, to be seen with the naked eye. At their closest point throughout the period, Mars and Jupiter will be separated by just .6 degrees, which will equate to about the width of a raised finger for those on the ground. Mars will be found...

This Sunday, April 17th, Jupiter will move into position closest to the eastern horizon, and almost on top of Venus. A bit south and above will be Mars looking very red, and then Saturn further up and further south. For most people in North America, the ideal time will be to go out and look southeast about 45 minutes before the sun begins to rise. On April 23rd, the Moon will appear in conjunction with the other spheres, appearing to the right and above Saturn, before moving off again by April 29th. In mid-June, due to its rapid orbiting around...

The Curiosity rover took a picture of something pretty enticing this week on the surface of Mars. While the object in question looks like a tiny little flower or maybe even some type of organic feature, the rover team confirmed this object is a mineral formation, with delicate structures that formed by minerals precipitating from water. Curiosity has actually seen these types of features before, which are called diagenetic crystal clusters. Diagenetic means the recombination or rearrangement of minerals, and these features consist of three-dimensional crystal clusters, likely made of a combination of minerals. Curiosity deputy project scientist Abigail Fraeman...

Interstellar space is a graveyard of lost souls. Adrift far from any star, these planets float in the darkness like ghost ships in the night. Catching sight of one requires patience, and a good eye. But a new approach based on tens of thousands of images collected by the European Southern Observatory's facilities has resulted in the identification of as many as 170 potential 'rogue' worlds in our corner of the galaxy. If a good fraction of them are confirmed to be planets, it would suggest the Milky Way is swarming with solar exiles. "There could be several billions of...

Jupiter, Saturn and Venus have lined up in the evening sky and will continue to be prominent features throughout most of December, but this week, the trio will get a visitor. The easy-to-find planets, paired with the approaching peak of the Geminid meteor shower, make December a great month for evening stargazing. The only caveat is that the weather can be fickle during the long December nights, often offering frosty conditions on nights that are not cloudy. The moon started off the week next to Venus, and as the week progresses, it will continue to move up the chain, passing...

Habitable Planets With Earth-Like Biospheres May Be Much Rarer Than Thought TOPICS:AstrobiologyAstronomyAstrophysicsExoplanetRoyal Astronomical SocietyBy Royal Astronomical Society June 26, 2021A new analysis of known exoplanets has revealed that Earth-like conditions on potentially habitable planets may be much rarer than previously thought. The work focuses on the conditions required for oxygen-based photosynthesis to develop on a planet, which would enable complex biospheres of the type found on Earth. The study was recently published in the Monthly Notices of the Royal Astronomical Society.The number of confirmed planets in our own Milky Way galaxy now numbers into the thousands. However, planets that are...

Neptune boasts some of the strangest weather in the solar system. The sun’s eighth planet holds the record for the fastest winds observed on any world, with speeds cutting through the atmosphere upward of 1,100 mph, or 1 1/2 times the speed of sound. Scientists still do not know exactly why its atmosphere is so tumultuous. Their latest glimpse of Neptune provided even more reason to be confused. The Hubble Space Telescope identified a storm in 2018, a dark spot some 4,600 miles across. Since that time, it appears to have drifted toward the equator but then swooped back up...

If you thought living on Earth in 2020 was comparable to hell, planet K2-141b is here to prove you wrong. On the scorching hot planet, hundreds of light-years away, oceans are made of molten lava, winds reach supersonic speeds and rain is made of rocks. Scientists have referred to the bizarre, hellish exoplanet as one of the most "extreme" ever discovered. According to a new study published in Monthly Notices of the Royal Astronomical Society, scientists from McGill University, York University and the Indian Institute of Science Education have uncovered details of one of the newest "lava planets" — a...