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NASA plans on Monday to introduce the four astronauts for its Artemis II lunar flyby mission, set for launch as early as next year in what would be the first crewed voyage around the Moon since the end of the Apollo era more than 50 years ago.

Officials from the Canadian Space Agency (CSA), which is contributing an astronaut to the crew, will join their US counterparts for the announcement in Houston at Johnson Space Center, NASA’s mission control base.

Artemis II will mark the debut crewed flight – but not the first lunar landing – of an Apollo successor program aimed at returning astronauts to the Moon’s surface this decade and establishing a sustainable outpost there, creating a stepping stone to human exploration of Mars.

The newly introduced crew will include the first Canadian astronaut for a Moon mission, as well as three Americans from a pool of 18 NASA astronauts – nine women and nine men – selected for the Artemis program in 2020.

The Artemis 18 group, a mix of veteran astronauts and relative newcomers, were also chosen on the basis of diversity, so the crew presented on Monday will most likely include not only the first woman but the first person of colour assigned to a lunar mission.

The kickoff Artemis I mission was successfully completed in December 2022, capping the inaugural launch of NASA’s powerful next-generation mega-rocket and its newly built Orion spacecraft on an uncrewed test flight that lasted 25 days.

The objective of the Artemis II flight, a 10-day, 1.4-million-mile (2.3-million-km) journey around the Moon and back, is to demonstrate that all of Orion’s life-support apparatus and other systems will operate as designed with astronauts aboard in deep space.

The flight is targeted for as early as 2024.

As planned, Artemis II will venture some 6,400 miles (10,300 km) beyond the far side of the Moon before returning, marking the closest pass that humans have made to Earth’s natural satellite since Apollo 17, which carried Gene Cernan and Harrison Schmitt to the lunar surface in December 1972.

They were the last of 12 NASA astronauts who walked on the Moon during six Apollo missions starting in 1969 with Neil Armstrong and Edwin “Buzz” Aldrin.

At its farthest distance from Earth, Artemis II is expected to reach a point more than 230,000 miles (370,000 km) away, compared to the typical low-Earth orbit altitude of the International Space Station, about 250 miles (420 km) above the planet.

Carried to Earth orbit atop NASA’s two-stage Space Launch System (SLS) rocket, the Artemis II crew will practice manual manoeuvres with the Orion spacecraft before handing control of the capsule back to ground control for further tests and the lunar flyby portion of the mission.

The outbound journey would culminate with Orion looping around the Moon, then using both the Earth’s and the Moon’s gravity to send the spacecraft on a propulsion-free return flight lasting about four more days, ending in a splashdown at sea.

If Artemis II is a success, NASA plans to follow up a few years later with the programs’ first lunar landing of astronauts, one of them a woman, on Artemis III, then continue with additional crewed missions about once a year.

Compared with the Apollo program, born of the Cold War-era U.S.-Soviet space race, Artemis is broader based, enlisting commercial partners such as Elon Musk’s SpaceX and the government space agencies of Canada, Europe and Japan.

It also marks a major redirection of NASA’s human spaceflight ambitions beyond low-Earth orbit after decades focused on its Space Shuttles and the International Space Station.

© Thomson Reuters 2023


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2,300-Year-Old Dwarf Statuette from Alexandria Reveals Ptolemaic Art Insights

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2,300-Year-Old Dwarf Statuette from Alexandria Reveals Ptolemaic Art Insights

A 2,300-year-old marble statuette discovered in Alexandria, Egypt, has offered new insights into how dwarves were perceived during the Ptolemaic period (332–150 B.C.). Depicting a muscular, nude dwarf in motion, the 4-inch sculpture reflects a combination of Egyptian and Greek artistic traditions. Despite missing its arms, legs, and part of the head, the craftsmanship of the piece indicates a highly skilled rendering of human anatomy. It is currently housed at the Metropolitan Museum of Art in New York City.

Depictions of Dwarves in Ptolemaic Art

According to information from the Metropolitan Museum of Art, as reported by Live Science, the statuette incorporates elements from Greek art, such as classical nudity and Hellenistic realism, blended with Egyptian cultural aesthetics. This synthesis points to the cultural exchange that characterised the Ptolemaic dynasty, a period when Egypt was ruled by Ptolemy I Soter, a general of Alexander the Great. The depiction of a dwarf engaged in dance suggests a significant societal role, unlike the exaggerated caricatures of dwarves often seen in Greek art.

Egyptian Perspectives on Dwarves

Historical records indicate that dwarves were highly regarded in ancient Egypt, often serving in the households of nobles and pharaohs. Their association with the god Bes, who was depicted as a short and muscular protector of families and women in childbirth, contributed to their societal acceptance. Bes, known as a dancer and tambourine player, symbolises strength and guardianship in Egyptian mythology. The statuette’s design, which likely depicted the dwarf with a percussion instrument, aligns with this cultural significance.

A Glimpse into Cultural Integration

The artifact demonstrates the integration of different human forms into Egyptian society during the Ptolemaic era. The Met has emphasised that such depictions reflect a broader tradition of valuing diverse body types, setting the Egyptian approach apart from other ancient civilisations. This statuette, though small in size, offers a profound understanding of cultural dynamics during a transformative period in history.

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Lunar Temperature Fluctuations: Understanding the Moon’s Extreme Conditions

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Lunar Temperature Fluctuations: Understanding the Moon's Extreme Conditions

The surface temperature of the moon experiences extreme variations, making it one of the harshest environments in the solar system. During lunar daylight, temperatures can soar to over 100 degrees Celsius, while in darkness, they can plummet to minus 100 degrees Celsius. These fluctuations are caused by the absence of an atmosphere, which on Earth moderates temperature extremes. Instead, the moon’s surface directly absorbs and radiates heat depending on exposure to sunlight.

Lunar Temperature Variations Explained

According to data provided by NASA and analysed by experts, such as John Monnier, a professor of astronomy at the University of Michigan, the moon’s soil, or regolith, significantly influences these temperature shifts. Regolith is a poor conductor of heat, causing rapid temperature changes on the surface while insulating the subsurface. As reported by Live Science, during Apollo missions, measurements indicated that temperatures beneath the surface were warmer by 40 to 45 kelvins compared to the lunar exterior.

Further research using NASA’s Lunar Reconnaissance Orbiter (LRO), launched in 2009, revealed localised thermal anomalies. Findings in 2022 demonstrated that shaded areas within certain lunar pits maintained a consistent temperature of 17 degrees Celsius. These regions are considered promising for future human habitation.

The Moon’s Poles and Extreme Conditions

The lunar poles present unique thermal environments due to the sun’s low angle. Permanently shadowed craters, particularly at the south pole, may host temperatures as low as minus 248.15 degrees Celsius. These craters are shielded not only from direct sunlight but also from secondary heat sources, such as reflected solar radiation. Such locations could hold trapped ice particles, potentially vital for sustaining future lunar exploration missions.

Understanding the moon’s thermal dynamics is essential for designing equipment capable of withstanding its conditions and planning potential settlements. Scientists and engineers continue to study these extremes to ensure that future missions can navigate and thrive in the lunar environment.

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SpaceX Launches 24 Starlink Satellites to Expand Global Internet Coverage

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SpaceX Launches 24 Starlink Satellites to Expand Global Internet Coverage

The first Starlink mission of 2025 was successfully launched by SpaceX from Florida’s Cape Canaveral Space Force Station on January 6, 2025, at 2:13 a.m. IST. A Falcon 9 rocket carried 24 Starlink satellites into orbit, aiming to expand SpaceX’s vast satellite internet network. The launch marked another significant step in SpaceX’s efforts to enhance global connectivity through its growing constellation of satellites.

Details of the Mission

According to a report from space.com, the Falcon 9 rocket’s first stage completed a flawless return to Earth, landing on the droneship “Just Read the Instructions,” positioned in the Atlantic Ocean. This milestone represented the 17th launch and recovery for this particular booster. SpaceX confirmed that this booster has supported 10 prior Starlink missions and was used in the Crew-5 mission, which transported astronauts to the International Space Station.

The upper stage of the rocket is expected to deploy the 24 satellites into low Earth orbit approximately 65 minutes after liftoff. These satellites will join the more than 6,850 active Starlink spacecraft currently operating, as stated to space.com by astrophysicist Jonathan McDowell, who tracks satellite constellations.

Starlink, developed by SpaceX, is the largest satellite network in history. Its purpose is to deliver high-speed internet access globally, including remote and underserved areas. With launches like this, the constellation continues to grow, reinforcing SpaceX’s position as a leader in satellite-based internet services. This launch follows a year of record-breaking achievements for SpaceX, which conducted numerous successful missions in 2024. The company remains focused on accelerating its deployment of satellites, with regular launches planned throughout 2025.

As SpaceX continues its Starlink initiative, its impact on global connectivity and advancements in reusable rocket technology remain noteworthy. The company’s commitment to innovation in space exploration is expected to shape the future of satellite communications.

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