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Abstract: We present Hubble Space Telescope imaging and spectroscopy of HD 217411, a G3 V star associated with the extreme ultraviolet (UV) excess source (EUV 2RE J2300­­–07.0). This star is revealed ...

A groundbreaking telescope might soon detect signs of extraterrestrial life. The Extremely Large Telescope (ELT), currently ...

The most distant and earliest "dead" massive galaxy ever seen shows some galaxies lived fast and died young shortly after the ...

Astronomers may have uncovered a hidden population of galaxies that could rewrite what we know about the universe's evolution. These faint, dusty galaxies were discovered using the deepest ...

Optical spectroscopy techniques are used in physics, astronomy, chemistry, biology, and associated research fields.

Up until recently, astronomy was reliant entirely on electromagnetic waves. While that changed with the confirmation of ...

Hidden galaxies offering a glimpse into the past could reveal previously unknown secrets of the universe, challenging current models.

The unusual galaxy was profiled in two complimentary studies. The first study, led by Doctoral Candidate Yimeng Tang of the University of California, Santa Cruz and published in the journal ...

Apr. 9, 2025 — Astronomers have peered back in time to find what looks like a population of 'hidden' galaxies that could hold the key to unlocking some of the universe's secrets. If their ...

The Habitable Exoplanet Observatory (HabEx) telescope was one of several proposal that were incorporated into the Habitable ...