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Archive for the ‘space’ category: Page 67

Jun 1, 2024

Don’t Miss the “Planetary Parade” — Witness Six Planets Align in a Rare Display

Posted by in category: space

On June 3, an alignment of six planets—Mercury, Mars, Jupiter, Saturn, Uranus, and Neptune —will be visible shortly before sunrise from dark, high vantage points with minimal light pollution. This rare event requires optical aids to view all planets.

Stargazers will have an incredible opportunity to look for six planets in Earth’s solar system on June 3. Mercury, Mars, Jupiter, Saturn, Uranus, and Neptune will appear, from some dark, weather-free vantage points on Earth, to form a more-or-less straight line in the night sky – but it’ll take some optical assistance to see them all.

The alignment is a bit of an illusion, astronomers are quick to point out, given the widely varying elliptical path of each planet’s orbit around the Sun. But the uncommon arrangement could prove captivating indeed – if local weather does not interfere.

Jun 1, 2024

Witnessing Cosmic Dawn: Webb Captures Birth of Universe’s Earliest Galaxies for First Time

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Using the James Webb Space Telescope, University of Copenhagen researchers have become the first to see the formation of three of the earliest galaxies in the universe, more than 13 billion years ago.

For the first time in the history of astronomy, researchers at the Niels Bohr Institute have witnessed the birth of three of the universe’s absolute earliest galaxies, somewhere between 13.3 and 13.4 billion years ago.

The discovery was made using the James Webb Space Telescope, which brought these first ‘live observations’ of formative galaxies down to us here on Earth.

Jun 1, 2024

Latest News, Live Breaking News on India, Politics, World, Business, Sports, Bollywood

Posted by in categories: business, space

Proud Moment! India Makes History Launches World’s First 3D-Printed #RocketEngine | Space Technology.

#DNAVideos | #India | #Rocket | #SpaceTechnology.

For more, click here.

May 31, 2024

‘Parade of planets’ on June 3: Here’s what it will really look like

Posted by in category: space

“People who plan to rise early and step outside on June 3 expecting to see the bloated disk of Jupiter or the rings of Saturn in a single glance will be, at the very least, quite disappointed,” prominent broadcast meteorologist Joe Rao wrote in a recent debunking column for Space.

The alleged “parade of planets” recently gained social media attention after Star Walk, a planetarium app, shared an article about the alignment, encouraging users to view the planets through its Sky Tonight stargazing tool.

The planetary alignment, or what astronomers call conjunction, according to NASA, will occur across the massive swath of sky in the Northern Hemisphere.

May 30, 2024

A Relic of Ancient Oceans and Planetary Collisions — Scientists Shed New Light on Earth’s Mysterious D Layer

Posted by in category: space

New research suggests the mysterious D layer at Earth’s core-mantle boundary might have formed from remnants of an early colossal impact, with iron-rich peroxide playing a key role in its unique and enduring features.

Deep within Earth, there lies a mysterious layer called the D layer. Located roughly 3,000 kilometers down, this zone sits just above the boundary between the planet’s molten outer core and its solid mantle. Unlike a perfect sphere, the D layer is surprisingly patchy. Its thickness varies greatly from place to place, with some regions even lacking a D layer altogether – much like continents rise above the Earth’s oceans. These intriguing variations have captured the attention of geophysicists, who describe the D layer as a heterogeneous, or non-uniform, region.

A new study led by Dr. Qingyang Hu (Center for High Pressure Science and Technology Advanced Research) and Dr. Jie Deng (Princeton University) suggests the D layer might be originated from Earth’s earliest days. Their theory hinges on the Giant Impact hypothesis, which proposes a Mars-sized object slammed into the proto-Earth, creating a planet-wide magma ocean in the aftermath. They believe the D layer may be a unique composition leftover from this colossal impact, potentially holding clues to Earth’s formation.

May 30, 2024

Building a Dyson Sphere Around the Sun Would Be Easy if We Used Jupiter for Raw Materials

Posted by in categories: energy, space

We’d need an astronomical amount of resources to construct a Dyson sphere, a giant theoretical shell that would harvest all of a given star’s energy, around the Sun.

In fact, as science journalist Jaime Green explores in her new book “The Possibility of Life,” we’d have to go as far as to demolish a Jupiter-sized planet to build such a megastructure, a concept first devised by physicist Freeman Dyson in 1960.

“If you wanted enough material to build such a thing, you’d essentially have to disassemble a planet, and not just a small one — more like Jupiter,” Green writes in her book.

May 29, 2024

Mystery of ‘slow’ solar wind unveiled by Solar Orbiter mission

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Described as “the most complex scientific laboratory ever to have been sent to the sun,” there are ten different scientific instruments onboard Solar Orbiter—some in situ to collect and analyze samples of the solar wind as it passes the spacecraft, and other remote sensing instruments designed to capture high quality images of activity at the sun’s surface.

By combining photographic and instrumental data, scientists have for the first time been able to identify more clearly where the slow solar wind originates. This has helped them to establish how it is able to leave the sun and begin its journey into the heliosphere—the giant bubble around the sun and its planets which protect our solar system from interstellar radiation.

Dr. Steph Yardley of Northumbria University, Newcastle upon Tyne, led the research and explains, The variability of solar wind streams measured in situ at a spacecraft close to the sun provide us with a lot of information on their sources, and although past studies have traced the origins of the solar wind, this was done much closer to Earth, by which time this variability is lost.

May 29, 2024

You can watch astronauts at the International Space Station receive 3 tons of supplies: Here’s how

Posted by in categories: energy, food, space

Space lovers have an opportunity to watch two unique occurrences at the International Space Station this week, but you will have to stay up pretty late — or wake up very early — to see them live.

According to NASA, the cargo spacecraft carrying three tons of food, fuel and supplies to the ISS is for the Expedition 71 crew.

The unpiloted spacecraft – called Progress 88 – is scheduled to launch on a Soyuz rocket from the Baikonur Cosmodrome in Kazakhstan on Thursday at 2:43 p.m. local time.

May 29, 2024

The death of Vulcan: Study reveals planet is actually an astronomical illusion caused by stellar activity

Posted by in category: space

A planet thought to orbit the star 40 Eridani A—host to Mr. Spock’s fictional home planet, Vulcan, in the “Star Trek” universe—is really a kind of astronomical illusion caused by the pulses and jitters of the star itself, a new study shows.

May 28, 2024

Space Force taking the long view of satellite servicing, with an industry in the balance

Posted by in categories: finance, military, space

And officials can come at those in slightly different ways — meaning that there isn’t necessarily a disconnect between SPACECOM and Space Force, she noted.

But, writ large, Christensen isn’t convinced most new commercial space companies currently being funded by venture capital — whether looking to provide satellite servicing or remote sensing or delivery via rocket — will be able to make it long term without Pentagon and IC dollars.

“I think the US national security community is going to shape commercial space for the foreseeable future,” she said.

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