How astronomers compare telescopes
How can you fairly compare one telescope to another? It's all in the (angular) resolution.
Astronomy
Apr 21, 2025
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Page 34: Research news on Space telescopes
Space telescopes as a research area encompass the scientific and technical study, design, deployment, and utilization of astronomical observatories operating above Earth’s atmosphere to access wide spectral ranges (e.g., ultraviolet, X-ray, gamma-ray, infrared) and achieve high-precision photometry, spectroscopy, and imaging. The field addresses orbital dynamics, thermal and structural stability, detector and optics optimization, contamination control, and data calibration pipelines. Research includes mission architecture, survey strategies, multi-messenger and time-domain coordination, and methodologies for extracting cosmological, stellar, and planetary parameters from space-based observations, as well as technology development for next-generation observatories and constellations.
Hubble spies a cosmic pillar in the Eagle Nebula
In anticipation of the upcoming 35th anniversary of the NASA/ESA Hubble Space Telescope, ESA/Hubble is continuing the celebrations with a new view of the Eagle Nebula. This vast stellar nursery displays a towering spire of ...
Astronomy
Apr 18, 2025
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PUNCH mission instruments collect first images
The Southwest Research Institute-led Polarimeter to Unify the Corona and Heliosphere (PUNCH) mission collected its first images following its March 11 launch into polar orbit around Earth. The mission's four small suitcase-sized ...
Astronomy
Apr 18, 2025
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It's time to build a space telescope interferometer—this could be the first step
The dream of finding life on an alien Earth-like world is hampered by a number of technical challenges. Not the least of which is that the Earth is dwarfed by the size and brightness of the sun. We might be able to discover ...
Astronomy
Apr 17, 2025
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Chandra releases new 3D models of cosmic objects
New three-dimensional (3D) models of objects in space have been released by NASA's Chandra X-ray Observatory. These 3D models allow people to explore—and print—examples of stars in the early and end stages of their lives. ...
Astronomy
Apr 17, 2025
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Hubble provides a new view of a galactic favorite
As part of ESA/Hubble's 35th anniversary celebrations, the European Space Agency (ESA) is sharing a new image series revisiting stunning, previously released Hubble targets with the addition of the latest Hubble data and ...
Astronomy
Apr 16, 2025
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Hubble spots stellar sculptors in nearby galaxy
This new image, released on April 4, 2025, showcases the dazzling young star cluster NGC 346. Although both the James Webb Space Telescope and the Hubble Space Telescope have released images of NGC 346 previously, this image ...
Astronomy
Apr 14, 2025
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Webb's autopsy of planet swallowed by star yields surprise
Observations from NASA's James Webb Space Telescope have provided a surprising twist in the narrative surrounding what is believed to be the first star observed in the act of swallowing a planet. The new findings, published ...
Astronomy
Apr 10, 2025
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X-ray binary 4U 1907+09: NuSTAR observations reveal flux variability and spin-down
Using NASA's Nuclear Spectroscopic Telescope Array (NuSTAR), Indian astronomers have performed X-ray observations of an X-ray binary designated 4U 1907+09. Results of the observational campaign, published April 3 on the arXiv ...
Observations explore the persistent nature of X-ray binary 4U 0728-25
Using ESA's XMM-Newton satellite, Italian astronomers have observed a Galactic X-ray binary system known as 4U 0728-25. Results of the new observations, presented in a research paper published March 28 on the arXiv preprint ...
