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April Fools Day.
April Fools Day.
Apr 1 all-day
April Fools Day.
April Fools’ Day or April Fool’s Day (sometimes called All Fools’ Day) is an annual celebration on April 1, commemorated by practical jokes and hoaxes. The player(s) of the joke(s) or hoax(es) often exposes their action by shouting “April fool(s)” at the recipient(s). The recipient of these Continue reading →
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Full Moon (19:35 MST).
Full Moon (19:35 MST).
Apr 7 all-day
Full Moon (19:35 MST).
Full Moon. Rises at sunset, high in the sky around midnight. Visible all night. Moon overview on solarsystem.nasa.gov
Moon at Perigee (11:08 MST)
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Passover starts at sunset (Jewish).
Venus of Milo discovered, 1820.
Venus of Milo discovered, 1820.
Apr 8 all-day
Venus of Milo discovered, 1820.
The Venus de Milo (Greek: Αφροδίτη της Μήλου, Aphroditi tis Milou) is an ancient Greek statue and one of the most famous works of ancient Greek sculpture. Initially it was attributed to the sculptor Praxiteles, but based on an inscription Continue reading →
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Apollo 13 launched, 1970.
Apollo 13 launched, 1970.
Apr 11 all-day
Apollo 13 launched, 1970.
Click link to watch the [Apollo 13 Movie Launch Scene]
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Apollo 13 accident occurs, 1970
Apollo 13 accident occurs, 1970
Apr 14 all-day
Apollo 13 accident occurs, 1970
Click link to watch the [Apollo 13 movie accident scene]
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Apollo 13 returns to Earth, 1970
Apollo 13 returns to Earth, 1970
Apr 17 all-day
Apollo 13 returns to Earth, 1970
Click link to watch the [Apollo 13 movie reentry and Recovery scene]
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J. A. Fleming died, 1945 (b. 1849).
J. A. Fleming died, 1945 (b. 1849).
Apr 18 all-day
J. A. Fleming died, 1945 (b. 1849).
Illustration from the Bibliographical Memoirs of Fellows of the Royal Society, 1945. The Royal Society, London. Sir John Ambrose Fleming FRS died in 1945, aged 95 (born 29 November 1849). “He was an English electrical engineer and physicist who invented Continue reading →
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Cpt. J. Cook reached Australia in 1770.
Cpt. J. Cook reached Australia in 1770.
Apr 19 all-day
Cpt. J. Cook reached Australia in 1770.
On 25 May 1768, the Admiralty commissioned Cook to command a scientific voyage to the Pacific Ocean. The purpose of the voyage was to observe and record the 1769 transit of Venus across the Sun which, when combined with observations Continue reading →
Easter in Julian Calendar.
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Lyrids Meteor Shower
Lyrids Meteor Shower
Apr 21 all-day
Lyrids Meteor Shower
Lyrids Meteor Shower Next period of activity: April 16th, 2020 to April 30th, 2020 Peak: Apr 21-22, 2020 – the moon will be 92% illuminated. The Lyrids are a medium strength shower that usually produces good rates for three nights Continue reading →
World Creativity and Innovation Day.
World Creativity and Innovation Day.
Apr 21 all-day
World Creativity and Innovation Day.
During World Creativity and Innovation  Day, April 21 (WCID) and Week April 15 – 21 (WCIW) individuals, families, teams, leaders, nations, organizations, students, and communities are acknowledged informed inspired   encouraged to use their creativity – to be open to and Continue reading →
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International Mother Earth Day.
New Moon (19:26 MST).
New Moon (19:26 MST).
Apr 22 all-day
New Moon (19:26 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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International Chernobyl Disaster Remembrance Day.
Srinivasa Ramanujan died, 1920 (b. 1887),
Srinivasa Ramanujan died, 1920 (b. 1887),
Apr 26 all-day
Srinivasa Ramanujan died, 1920 (b. 1887),
Srinivasa Ramanujan FRS [ˈsriːniˌvɑːsə rɑːˈmɑːnʊdʒən] died in 1920 at the age of 32 (born  22 December 1887). Adding the first five positive integers 1+2+3+4+5, gives the sum of 15, a positive integer. Adding the first ten positive integers yields the Continue reading →
Uranus in Conjunction with Sun.
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Cpt. J. Cook landed in Botany Bay, 1770.
Cpt. J. Cook landed in Botany Bay, 1770.
Apr 28 all-day
Cpt. J. Cook landed in Botany Bay, 1770.
On 25 May 1768, the Admiralty commissioned Cook to command a scientific voyage to the Pacific Ocean. The purpose of the voyage was to observe and record the 1769 transit of Venus across the Sun which, when combined with observations Continue reading →
World Day for Safety and Health at Work.
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M63 LRGBHa, by Tony Hallas, USA. This galactic sunflower is a flocculent spiral galaxy about 30 million light years away in the constellation Canes Venatici.