Image: Hubble eyes an emitting galaxy
For this image, the NASA/ESA Hubble Space Telescope turned its powerful eye toward an emission-line galaxy called NGC 3749.
Astronomy
Nov 22, 2019
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Page 3 - News tagged with absorption lines
The 21-cm forest probe may unlock secrets of early universe, nature of dark matter
The mystery of the formation of the first galaxies in the universe is a puzzle for researchers. The nature of dark matter is also one of the most important mysteries faced by fundamental physicists. However, understanding ...
Astronomy
Jul 13, 2023
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Mysterious stellar absorption lines could illuminate 90-year puzzle
The discovery of 13 diffuse interstellar bands with the longest wavelengths to date could someday solve a 90-year-old mystery.
Astronomy
Nov 2, 2011
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Diamonds are a chip's best friend: Research determines spin-orbit effects on exciton complexes
Besides being "a girl's best friend," diamonds have broad industrial applications, such as in solid-state electronics. New technologies aim to produce high-purity synthetic crystals that become excellent semiconductors when ...
Condensed Matter
Feb 27, 2024
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Chemical signatures of iron predict red supergiant temperature
Red supergiants are a class of star that end their lives in supernova explosions. Their lifecycles are not fully understood, partly due to difficulties in measuring their temperatures. For the first time, astronomers have ...
Astronomy
Mar 1, 2021
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NASA's new CO2 sounder nearly ready for prime time
After years of work, a team of NASA scientists and engineers is poised to realize a lifetime goal: building an instrument powerful and accurate enough to gather around-the-clock global atmospheric carbon-dioxide (CO2) measurements ...
Earth Sciences
Aug 2, 2016
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NASA to create first-ever space-based sodium lidar to study poorly understood mesosphere
A team of NASA scientists and engineers now believes it can leverage recent advances in a greenhouse-detecting instrument to build the world's first space-based sodium lidar to study Earth's poorly understood mesosphere.
Space Exploration
May 16, 2017
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Attosecond science opens new avenues in femtochemistry
Attosecond Science is a new exciting frontier in contemporary physics, aimed at time-resolving the motion of electrons in atoms, molecules and solids on their natural timescale. Electronic dynamics derives from the creation ...
General Physics
Aug 17, 2016
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Measuring the temperatures of red giants is actually pretty tricky
Red giant stars are, well, red and giant. But astronomers have always had difficulty estimating their temperatures due to their complex and turbulent atmospheres. Without an accurate gauge of their temperatures, it's difficult ...
Astronomy
Mar 15, 2021
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Concentration-independent pressure sensing method developed for high-temperature combustion diagnostics
Recently, a research group led by Prof. Gao Xiaoming and Prof. Liu Kun from Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences (CAS), developed a concentration-independent pressure sensing method based ...
Condensed Matter
Mar 7, 2024
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