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Search results for “Space Exploration”

1,000+ results for "Space Exploration"

Pushing the boundaries of space exploration with X-ray polarimetry

The Imaging X-ray Polarimetry Explorer (IXPE) mission enables new measurements of cosmic X-ray sources, such as pulsars, black holes, and neutron stars. With its state-of-the-art telescopes and detectors, IXPE will provide high-quality polarization data of various sources, including supernova remnants, active galaxies, and blazars.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Astronomical Telescopes Instruments and Systems·DateApr 22, 2022

How scientists designed the space-based aperture-synthetic interferometer system?

The system uses multiple satellites to form an aperture-synthetic interferometer, meeting four key demands: high spatial resolution, contrast, sensitivity, and wide spectral range. Numerical simulations validate the method's efficiency, with reduced transfer times and stable orbit maintenance.

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·TypeExperimental study·DateApr 8, 2022

How scientists developed new composites with good shielding performance to space radiation?

Researchers created two types of hydrogenous-rich composites for shielding space radiation, which showed higher shielding abilities than traditional aluminum. The simulations also revealed that these new composites can reduce the mass needed for shielding by up to 77% when the thickness is larger than 10 g/cm².

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·TypeExperimental study·DateMar 3, 2022

Controlling robots from space

For the first time, astronauts in orbit successfully controlled a robot on the ground using haptic feedback, simulating geological exploration missions. This breakthrough enables more complex investigations of planetary surfaces without human exposure to danger.

SourceDe Gruyter·JournalOpen Astronomy·TypeExperimental study·DateFeb 1, 2022

Sending life to the stars

Researchers Philip Lubin and Joel Rothman propose using light as a propellant to propel small probes up to 20-30% of the speed of light, potentially enabling human missions to Mars in under a month. The project aims to develop a roadmap for relativistic flight via directed energy propulsion, supported by NASA and private foundations.

SourceUniversity of California - Santa Barbara·JournalActa Astronautica·DateJan 6, 2022

Visual displays in space station culture

Researchers analyzed thousands of space station photographs to discover that Russian cosmonauts use walls to display religious icons and Soviet heroes, reflecting national identity and cultural heritage. This study has practical applications for long-duration space missions, where understanding human identity and society is crucial.

SourceUniversity of Chicago Press Journals·JournalCurrent Anthropology·TypeSystematic review·DateDec 23, 2021

Lightweight space robot with precise control developed

Developed by researchers from Harbin Institute of Technology, a new robotic arm can manipulate in environments difficult for humans and adapt to changing conditions. The arm weighs only 9.23 kilograms and can exert constant force control, enabling it to maintain contact with curved surfaces in space.

SourceBeijing Institute of Technology Press Co., Ltd·JournalSpace: Science & Technology·TypeComputational simulation/modeling·DateDec 3, 2021

Cells’ replication of DNA is more ‘error-prone’ in microgravity

Researchers found that DNA polymerases derived from E. coli are more prone to errors under microgravity, increasing the mutation rate and potentially leading to cancer. The study's results highlight the importance of designing rotating spaceships with artificial gravity to prevent negative effects on astronauts' health.

SourceFrontiers·JournalFrontiers in Cell and Developmental Biology·TypeExperimental study·DateNov 29, 2021

Preventing “alien” invasions

A new article from McGill University researchers advocates for bolstering planetary biosecurity to address potential biological contamination risks from space missions. Early detection and rapid response protocols, informed by knowledge gained from invasion science, are crucial for preventing the spread of alien biological contaminants.

SourceMcGill University·JournalBioScience·DateNov 18, 2021

The optical Stern-Gerlach Deflection and Young’s experiment in the reciprocal space

Researchers demonstrated Young's experiment for photons in reciprocal space, creating an interference pattern of light polarization with circular polarized stripes. The observation coincided with the 100th anniversary of spin discovery and showed a classic entanglement of two degrees of freedom - direction and polarization of light.

SourceUniversity of Warsaw, Faculty of Physics·JournalPhysical Review Letters·TypeExperimental study·DateNov 9, 2021

Brain damage from long stays in space

A study published in JAMA Neurology found that long-term exposure to space can cause brain damage in cosmonauts. The research analyzed five Russian male cosmonauts who spent an average of 169 days in space, showing significant increases in biomarkers for brain cell damage upon their return to Earth.

SourceUniversity of Gothenburg·JournalJAMA Neurology·TypeCase study·DateOct 12, 2021

What was really the secret behind Van Gogh’s success?

A new study from Northwestern University finds that exploring diverse styles before exploiting a narrow area can lead to a career's greatest hits. Dashun Wang and his team analyzed data from over 2,128 artists, including Jackson Pollock, and found a consistent association between the 'exploration-exploitation' pattern and hot streaks.

SourceNorthwestern University·JournalNature Communications·TypeData/statistical analysis·DateSep 13, 2021

Astronauts demonstrate CRISPR/Cas9 genome editing in space

Researchers have developed a novel method for studying DNA repair in yeast cells that can be conducted entirely in space, using CRISPR/Cas9 genome editing technology. The technique successfully demonstrated the viability of the new method on the ISS, paving the way for extensive research into DNA repair in space.

SourcePLOS·JournalPLOS ONE·DateJun 30, 2021

Māori connections to Antarctica may go as far back as 7th century, new study shows

A new study published in the Journal of the Royal Society of New Zealand suggests that indigenous Māori people may have set eyes on Antarctic waters and possibly the continent as early as the 7th century. The research uncovers a deep-rooted connection between Māori people and Antarctica, which continues to this day.

SourceTaylor & Francis Group·JournalJournal of the Royal Society of New Zealand·DateJun 9, 2021

Laser light makes a comeback (literally)

Researchers from Osaka University have made a groundbreaking discovery about the behavior of laser pulses in free space. They found that laser pulse intensity can propagate in a straight line, with the forward-propagating velocity being the speed of light and the backward-propagating velocity being subluminal.

SourceOsaka University·JournalCommunications Physics·DateMay 4, 2021

Measuring space-time 'entanglement' of electromagnetic waves

Scientists quantify space-time nonseparability of electromagnetic pulses using quantum state tomography and calculate fidelity, concurrence, and entanglement. They propose novel concepts for measuring space-time entanglement in structured light, opening new avenues for ultrahigh-capacity communication and high-security encryption.

Venus plots a comeback

Space agencies are turning their attention back to Venus, the closest planet to Earth, to learn more about its atmosphere and geology. Recent findings have generated renewed interest, and multiple missions are planned to study Venus' surface and atmospheric chemistry.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateMar 31, 2021