Venus and Jupiter along with the Moon over ESO's Very Large Telescope (VLT) observatory at Paranal, ... [+] Chile.
* * *
So you need to get ready for February 25-28, 2021, when the outer gas giant planets Jupiter and Saturn are visited—from our point of view, at least—by the tiny planet Mercury.
From Thursday, February 25 through Sunday, February 28, 2021, Jupiter, Saturn and Mercury will be loosely aligned, with Jupiter gradually moving closer to Mercury over the course of those few mornings.
This may worth something:
No sign of Planet Nine? Trail runs cold for hypothetical world
The findings do not rule out the possibility of a ninth planet orbiting the Sun, and astronomers say more data will be needed to put the debate to rest.
* * *
This clustering, they said, had to be due to the gravitational influence of a huge planet hiding somewhere in the outer Solar System, at least 400 times as far from the Sun as Earth, or around 10 times as far as the most famous TNO, the dwarf planet Pluto. If proved to exist, the distant world would be a major discovery — a giant beyond Neptune that would unquestionably be classed as a planet.
We have spotted two planets orbiting a backwards-spinning star | New Scientist
A planetary system 897 light years away from us has two planets orbiting a star that rotates backwards .
It used to be assumed that a spinning star's equator should line up with the orbital plane of its planets, because the star and planets both ultimately grow from the same spinning molecular cloud. As a consequence, the star should spin in the same direction that the planets orbit. But the K2-290 system doesn't follow this rule.
* * *
Simon Albrecht at Aarhus University in Denmark and his colleagues determined that, compared with both planets' orbits, K2-290 A's rotational axis is tilted by approximately 124 degrees. This means that the star actually spins in roughly the opposite direction to its two orbiting planets.
A pebble accretion model for the formation of the terrestrial planets in the Solar System |
Pebbles of millimeter sizes are abundant in protoplanetary discs around young stars. Chondrules inside primitive meteorites—formed by melting of dust aggregate pebbles or in impacts between planetesimals—have similar sizes. The role of pebble accretion for terrestrial planet formation is nevertheless unclear. Here, we present a model where inward-drifting pebbles feed the growth of terrestrial planets.
The radial flux of pebbles toward the star was recently demonstrated to determine the outcome of planetary growth in the inner regions of the protoplanetary disc ( 22 ): High pebble fluxes from the outer protoplanetary disc lead to formation of migrating chains of super-Earths, while any reduction in the pebble flux, e.g.
Were you following this:
Touchdown! NASA's Mars Perseverance Rover Safely Lands on Red Planet
This is the first image NASA's Perseverance rover sent back after touching down on Mars on Feb. 18, 2021. The view, from one of Perseverance's Hazard Cameras, is partially obscured by a dust cover.
* * *
The agency's latest and most complex mission to the Red Planet has touched down at Jezero Crater. Now it's time to begin testing the health of the rover.
The largest, most advanced rover NASA has sent to another world touched down on Mars Thursday, after a 203-day journey traversing 293 million miles (472 million kilometers). Confirmation of the successful touchdown was announced in mission control at NASA's Jet Propulsion Laboratory in Southern California at 3:55 p.m. EST (12:55 p.m. PST).
Scientists decode how Mars may have lost its atmosphere | Hindustan Times
According to the scientists, Arnab Basak and Dibyendu Nandi from the Indian Institutes of Science Education and Research (IISER) Kolkata, these magnetic fields enveloping planets can act like a protective umbrella, shielding the atmosphere from the super fast plasma winds of the Sun.
On the Earth, they said a geo-dynamo mechanism generates the planet's protective magnetosphere -- an invisible shield that stops the solar wind from eroding away our atmosphere.
Rare's unreleased N64 game Dinosaur Planet has leaked - The Verge
Dinosaur Planet is an unreleased Nintendo 64 game by Rare that ultimately evolved into Star Fox Adventures for GameCube. But thanks to the preservationists at Forest of Illusion, it's now possible to play that unfinished, original title. A build of the game from December 1st, 2000 — well into its development cycle — was retrieved from a disc purchased from a private collector.
Screenshots of the game feature Fox McCloud; as noted by Eurogamer , Nintendo's Shigeru Miyamoto was reportedly influential in pushing the developers to shift the game into a Star Fox title. Digital Foundry' s John Linneman uploaded 20 minutes of gameplay, and here you can also see Fox replacing one of the original game's intended protagonists, Sabre.
Can New Horizons help us find Planet Nine? | Astronomy.com
Q: Since New Horizons’ flyby of Arrokoth in January 2019, is the spacecraft zooming toward a new target? Is New Horizons able to search for Planet Nine?
* * *
A: New Horizons is healthy and routinely studying the Kuiper Belt environment and Kuiper Belt objects (KBOs) it passes in the distance. For the next year or so, the New Horizons team is using the largest telescopes on Earth — such as the Subaru telescope in Hawaii — to find more KBO targets. From there, we can determine if New Horizons has the fuel to perform a flyby.
Happening on Twitter
I can't believe this is still up.. Legal where?! The Holy See is a sovereign state and the Pope has absolute pow… https://t.co/piXohFVR3J yashar (from 🐘🐘🐘🐘) Fri Feb 19 15:06:42 +0000 2021
You can see how much Layton Stewart's first PL2 goal means to him 🙌🔴 Tune in to the second half of #LFCU23s' clash… https://t.co/Q8xPxdyUcA LFC (from At Home 🏠) Fri Feb 19 20:25:28 +0000 2021
WE DID IT! You made this happen and I appreciate each and every one of you. Can't wait to see where we go next 🚀… https://t.co/OiinQcOC6Q SlimJim Sat Feb 20 02:39:11 +0000 2021
I can tell you there are moments where people need their Senator. They need to see you, and your staff 24/7. A Sen… https://t.co/gmH2bwtrLA BarbaraBoxer (from California ) Fri Feb 19 16:46:18 +0000 2021
No comments:
Post a Comment