Read news from the world of astronomy for the week of January 13, 2023.
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Read news from the world of astronomy for the week of January 13, 2023.
The Webb Space Telescope is finding too many galaxies in the early universe. Plus, astronomers have discovered a giant blinking star. And meet Mirfak.
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Latest News
The James Webb Space Telescope Is Finding Too Many Early Galaxies
Images and spectra from JWST suggest that the first galaxies in the universe are too many or too bright.
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Astronomers Discover Giant Blinking Star
A red giant star thousands of light-years away “blinked,” dimming significantly for seven long years, before returning to normal.
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A 3D Magnetic Map of the Local Bubble
Astronomers have mapped the magnetic field along the “bubble” of gas 1,000 light-years wide around the Sun.
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Astronomers Spot A Tiny Binary System
A tiny binary system is not only small but also ancient, billions of years older than other such systems, which raises questions about its origins.
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Observing Highlights
This Week's Sky at a Glance, January 13 – 21
Comet C/2022 E3 (ZTF) has been gradually brightening. Now it's crossing the northern sky at about 6th magnitude. For now, the comet is highest in the early morning hours before the beginning of dawn. Tonight, it's at the Bootes/Hercules border.
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Solar and Lunar Eclipses in 2023
Although no total lunar eclipses occur this year, skywatchers can look forward to two “central” solar eclipses.
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Meet Mirfak, the Supergiant of Perseus
Mirfak, the brightest star in the constellation Perseus, is a yellow supergiant star with an uncertain fate.
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January: Goodbye, Saturn (Hello, Venus)
For those well north of the equator, January’s long nights provide lots of time to enjoy the starry sky — and the stars of winter are spectacular!
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Community
The Astronomical Calendar: A Free, Virtual Lecture
How did astronomy and the ancient world shape our modern calendar? Lydia Maria Petrosino will share her expertise about archeoastronomy.
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