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NASA’s Orion capsule made a blisteringly fast return from the Moon Sunday, parachuting into the Pacific off Mexico to conclude a test flight that should clear the way for astronauts on the next lunar flyby.

The incoming capsule hit the atmosphere at Mach 32, or 32 times the speed of sound, and endured reentry temperatures of 5,000 degrees Fahrenheit (2,760 degrees Celsius) before splashing down west of Baja California near Guadalupe Island. A Navy ship quickly moved in to recover the spacecraft and its silent occupants — three test dummies rigged with vibration sensors and radiation monitors.

NASA hailed the descent and splashdown as close to perfect, as congratulations poured in from Washington..

“I’m overwhelmed,” NASA Administrator Bill Nelson said from Mission Control in Houston. “This is an extraordinary day… It’s historic because we are now going back into space — deep space — with a new generation.”

The space agency needed a successful splashdown to stay on track for the next Orion flight around the Moon, targeted for 2024 with four astronauts who will be revealed early next year. That would be followed by a two-person lunar landing as early as 2025 and, ultimately, a sustainable Moon base. The long-term plan would be to launch a Mars expedition by the late 2030s.

Astronauts last landed on the Moon 50 years ago. After touching down on December 11, 1972, Apollo 17′s Eugene Cernan and Harrison Schmitt spent three days exploring the valley of Taurus-Littrow, the longest stay of the Apollo era. They were the last of the 12 Moonwalkers.

Orion was the first capsule to visit the Moon since then, launching on NASA’s new mega Moon rocket from Kennedy Space Center on November 16. It was the first flight of NASA’s new Artemis Moon program, named after Apollo’s mythological twin sister.

“From Tranquility Base to Taurus-Littrow to the tranquil waters of the Pacific, the latest chapter of NASA’s journey to the Moon comes to a close. Orion back on Earth,” announced Mission Control commentator Rob Navias.

While no one was on the $4 billion test flight, NASA managers were thrilled to pull off the dress rehearsal, especially after so many years of flight delays and busted budgets. Fuel leaks and hurricanes conspired for additional postponements in late summer and fall.

In an Apollo throwback, NASA held a splashdown party at Houston’s Johnson Space Center on Sunday, with employees and their families gathering to watch the broadcast of Orion’s homecoming. Next door, the visitor center threw a bash for the public.

Getting Orion back intact after the 25-day flight was NASA’s top objective. With a return speed of 25,000 mph (40,000 kph) — considerably faster than coming in from low-Earth orbit — the capsule used a new, advanced heat shield never tested before in spaceflight. To reduce the gravity or G loads, it dipped into the atmosphere and briefly skipped out, also helping to pinpoint the splashdown area.

All that unfolded in spectacular fashion, officials noted, allowing for Orion’s safe return.

“I don’t think any one of us could have imagined a mission this successful,” said mission manager Mike Sarafin.

Further inspections will be conducted once Orion is back at Kennedy by month’s end. If the capsule checks find nothing amiss, NASA will announce the first lunar crew amid considerable hoopla in early 2023, picking from among the 42 active U.S. astronauts stationed at Houston’s Johnson Space Center.

“People are anxious, we know that,” Vanessa Wyche, Johnson’s director, told reporters. Added Nelson: “The American people, just like (with) the original seven astronauts in the Mercury days, are going to want to know about these astronauts.”

The capsule splashed down more than 300 miles (482 kilometers) south of the original target zone. Forecasts calling for choppy seas and high wind off the Southern California coast prompted NASA to switch the location.

Orion logged 1.4 million miles (2.25 million kilometers) as it zoomed to the Moon and then entered a wide, swooping orbit for nearly a week before heading home.

It came within 80 miles (130 kilometers) of the Moon twice. At its farthest, the capsule was more than 268,000 miles (430,000 kilometers) from Earth.

Orion beamed back stunning photos of not only the gray, pitted Moon, but also the home planet. As a parting shot, the capsule revealed a crescent Earth — Earthrise — that left the mission team speechless.

Nottingham Trent University astronomer Daniel Brown said the flight’s many accomplishments illustrate NASA’s capability to put astronauts on the next Artemis Moonshot.

“This was the nail-biting end of an amazing and important journey for NASA’s Orion spacecraft,” Brown said in a statement from England.

The Moon has never been hotter. Just hours earlier Sunday, a spacecraft rocketed toward the Moon from Cape Canaveral. The lunar lander belongs to ispace, a Tokyo company intent on developing an economy up there. Two U.S. companies, meanwhile, have lunar landers launching early next year.


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NASA Hubble Space Telescope Helps Confirm the First Solitary Black Hole

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NASA Hubble Space Telescope Helps Confirm the First Solitary Black Hole

For the first time, the existence of a lone black hole has been confirmed by scientists. This black hole has no star orbiting it. According to the statement by Kailash Sahu, astronomer at the Space Telescope Science Institute in Baltimore, “it’s the only one so far”. The discovery made headlines in the year 2022, when Sahu and his Team claimed a dark object was moving through the constellation Sagittarius. However, another team of researchers disputed the claims by identifying the object as a neutron star.

About the Discovery

This discovery came into the light three years ago. All the stellar-mass black holes are accompanied by stars that betray their presence and race around an invisible star, along with three times the sun’s mass. Such a procedure indicates the presence of black holes rather than a neutron star.

On the contrary, the solitary black holes are expected to be common, but are very hard to find. Likewise, the one in Sagittarius was identified while passing through the dim background star and additionally shifting its position due to the black hole’s gravity. Recently, Sahu’s efforts were reported in the Astrophysical Journal, about the new observations from NASA’s Hubble Space Telescope, confirming the presence of a lone black hole in Sagittarious.

Black Hole Key Findings

Although the passage occurred first in the year 2011, the original discovery relied on the Hubble measurements from the year 2011 to 2017. However, the new data has been gained from the Hubble observations from the year 2021 to 2022, accompanied by the data received from the Gaia Spacecraft.

How Big is a Black Hole?

The ideal size of this lone black home is seven times as huge as the sun. In recent observations, a different team of scientists revisited the project and identified the size as massive as six times that of the sun. The theories of the scientists match with that of Sahu’s observation.

The research continues for detecting the black holes in Sagittarius. Located at a distance of 5,000 light years away from Earth, this solitary black hole is yet to be observed from different aspects. The astronomer, Sahu, hopes to find more lone black holes with the effective use of the Nancy Grace Roman Space Telescope, which is set to launch in the year 2027.

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Mars’ Carbonate Mystery and Ancient Atmosphere Deciphered

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Mars’ Carbonate Mystery and Ancient Atmosphere Deciphered

The evolution of Mars and its ancient atmosphere has been a prominent research topic for scientists. NASA’s Curiosity Mars rover could potentially be the ultimate solution for the temperature and other details about the planet. As per the assumptions made by the researchers, Mars’s atmosphere was crafted with a thick layer of carbon dioxide whereas the surface comprised liquid water. Likewise, the presence of carbonate minerals on the planet would be the result of a potential reaction between water, carbon dioxide, and Martian rocks, researchers say.

Presence of Siderite Detected

Recently reported in the April paper of Science, the presence of siderite has been discovered within the sulfate-rich rocky layers of Mount Sharp on Mars. The discovery was made at three of Curiosity’s drill sites.

According to the lead author and Associate Professor at the University of Calgary, Canada, Benjamin Tutolo, “The discovery of abundant siderite in Gale Crater represents both a surprising and important breakthrough in our understanding of the geologic and atmospheric evolution of Mars”.

About the Drilling Process

To achieve an understanding of the chemical and mineral makeup at the surface of Mars, Curiosity drills three to four centimeters down into the subsurface. Further, the powdered rock samples are then dropped into the CheMin instrument. This instrument analyses the rocks and soil via X-ray diffraction. The CheMin instrument is driven by NASA’s Ames Research Centre in California’s Silicon Valley.

The data analysis of the discovery was conducted by scientists at the Astromaterials Research and Exploration Science (ARES) Division at NASA Johnson Space Center in Houston.

Potential Findings and Atmosphere at Mars

The discovery of this carbonate mineral could potentially be hiding other minerals beneath the surface, in near-infrared satellite analysis. The possible presence of carbonates in sulfate-rich layers across Mars may result in the amount of carbon dioxide, which will be ideal to support the liquid water and create conditions warm enough to sustain water. Also, the scientists doubt the existence of other carbonates, or maybe they might have vanished from space.

To Conclude

The missions and analyses are still undergoing, and they will continue the research in the future. The findings can be confirmed post-research on the sulfate-rice area on the red planet. As the findings arrive, they will help us understand the transformation of the planet and will offer clarity on the ancient atmosphere.

Note: Curiosity is a part of NASA’s Mars Exploration Program (MEP) portfolio. It was built by NASA’s Jet Propulsion Laboratory, managed by Caltech in Pasadena, California. The mission is successfully led by JPL on behalf of NASA’s Science Mission Directorate in Washington.

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JWST Might Have Revealed New Signs of Alien Life on Nearby Exoplanet

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JWST Might Have Revealed New Signs of Alien Life on Nearby Exoplanet

Scientists discovered suitable biosignature gases for alien life on planet K2-18b. On K2-18b, NASA’s James Webb Space Telescope (JWST) noticed dimethyl sulfide (DMS), a chemical primarily produced by living creatures on Earth. Notably, the exoplanet is nine times the size of our planet and exists in the habitable zone of its planetary system. As exoplanets pass in front of their home stars, the team probes planetary atmospheres using JWST’s Mid-Infrared Instrument (MIRI). Based on its size and other properties, astronomers think K2-18b is a “Hycean” world—that is, one with a large liquid-water ocean and a hydrogen-rich atmosphere.

Although the researchers estimate concentrations of more than 10 parts per million by volume on Earth, they are less than one part per billion. However, further research is required to confirm and expand on their findings.

NASA’s Webb Telescope Finds Possible Life Signs on Exoplanet K2-18b

According to a new study, which was published in The Astrophysical Journal Letters, chemical proof of life on the far-off exoplanet K2-18b has come from NASA’s James Webb Space Telescope. Rare on other planets or moons, these signals, which point to the presence of dimethyl sulfide and dimethyl disulfide, are found in marine plants and bacteria on Earth.

Because K2-18b boasts a hydrogen-rich atmosphere and a planet-wide ocean, researchers classify it as a “hycean world.” Methane and carbon dioxide, found in the planet’s atmosphere in 2023, were the first carbon-based compounds found in the habitable zone of an exoplanet. Though the levels had minimal statistical significance, the researchers also found likely DMS signals, therefore confounding DMS diagnosis. The results underline the possibilities of life on exoplanets.

JWST Data Hints at High Sulfur Levels on Exoplanet, Life or Not

MIRI observations from the JWST expose features in planetary atmospheres that point to DMS or DMDS helping to explain them. Scientists estimate that atmospheric DMS and DMDS levels could be substantially greater than on Earth, that is, above 10 parts per million. Differentiating DMS from DMDS requires more data. Scientists want to investigate undiscovered chemical processes involving no living entities able to generate DMS and DMDS from nothing.

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