NGC 1232 barred Spiral in Eridanus, by Josef Pöpsel, Stefan Binnewies (www.capella-observatory.com), Germany. This majestic spiral galaxy and its companion lie about 60 million light years away in the constellation Eridanus.

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Sun Mon Tue Wed Thu Fri Sat
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May Day, a cross quarter day.
May Day, a cross quarter day.
May 1 all-day
May Day is a public holiday usually celebrated on 1 May. It is an ancient Northern Hemisphere spring festival and a traditional spring holiday in many cultures. Dances, singing, and cake are usually part of the festivities. In the late 19th century, May Day was chosen as the Continue reading →
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Eta-Aquariid Meteor Shower.
Eta-Aquariid Meteor Shower.
May 4 all-day
Eta-Aquariid Meteor Shower.
Eta-Aquariids Meteor Shower Next period of activity: April 19th, 2020 to May 28th, 2020 Peak: May 5-6, 2020 – the moon will be 1% illuminated. The Eta Aquariids are a strong shower when viewed from the southern tropics. From the Continue reading →
Mercury at Superior Conjunction.
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Full Moon (03:45 MST).
Full Moon (03:45 MST).
May 7 all-day
Full Moon (03:45 MST).
Full Moon. Rises at sunset, high in the sky around midnight. Visible all night. Moon overview on solarsystem.nasa.gov
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HMS Beagle launched, 1820.
HMS Beagle launched, 1820.
May 11 all-day
HMS Beagle launched, 1820.
The second voyage of HMS Beagle (1831-36) is notable for carrying the recently graduated naturalist Charles Darwin around the world. While the survey work was carried out, Darwin travelled and researched geology, natural history and ethnology onshore. He gained fame by publishing his diary Continue reading →
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Maximilian Hell, S.J., born 1720 (d. 1792).
Maximilian Hell, S.J., born 1720 (d. 1792).
May 15 all-day
Maximilian Hell, S.J., born 1720 (d. 1792).
Jesuit priest, first director of the Vienna Observatory most famous for his observation of the transit of Venus in 1769 in the northernmost Norway. His 300th birthday celebration planned in his birthplace (which is, incidentally, a UNESCO World Heritage Site) Continue reading →
Peace Officers Memorial Day.
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Armed Forces Day.
Armed Forces Day.
May 16 all-day
 
Feast of St. Brendan, patron of navigators who steer by celestial bodies. 
International Day of Light.
International Day of Light.
May 16 all-day
International Day of Light.
The International Day of Light is a global initiative that provides an annual focal point for the continued appreciation of light and the role it plays in science, culture and art, education, and sustainable development, and in fields as diverse Continue reading →
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World Telecommunication and Information Society Day.
World Telecommunication and Information Society Day.
May 17 all-day
Theme: “Connect 2030: ICTs for the Sustainable Development Goals (SDGs)​” Every year since 1969, ITU celebrates the World Telecommunication and Information Society Day, which marks the founding of ITU on 17 May 1865 when the first International Telegraph Convention was Continue reading →
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World Metrology Day.
World Metrology Day.
May 20 all-day
World Metrology Day.
World Metrology Day, and first anniversary of the newly defined base units of the Système International: kilogram, ampere, mole, and kelvin. There are two ways how to discover something radically new in physics. The “obvious” one is to go beyond the Continue reading →
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Mercury at 0.9° of Venus.
New Moon (10:39 MST).
New Moon (10:39 MST).
May 22 all-day
New Moon (10:39 MST).
By the modern definition, New Moon occurs when the Moon and Sun are at the same geocentric ecliptic longitude. The part of the Moon facing us is completely in shadow then. Pictured here is the traditional New Moon, the earliest visible Continue reading →
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Memorial Day.
Memorial Day.
May 25 all-day
 
Towel Day – 42nd anniversary of the first BBC broadcast of the Hitchhiker’s guide to the galaxy.
Towel Day – 42nd anniversary of the first BBC broadcast of the Hitchhiker’s guide to the galaxy.
May 25 all-day
Towel Day - 42nd anniversary of the first BBC broadcast of the Hitchhiker's guide to the galaxy.
Towel Day is an annual celebration on the 25th of May, as a tribute to the late author Douglas Adams (1952-2001). On that day, fans around the universe carry a towel in his honor. Towel Day 2020 will be special as Continue reading →
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The Vela Supernova Remnant, by Robert Gendler and Roberto Colombari, USA. This type II supernova remnant is the result of an explosion about 12,000 years ago in the constellation Vela.