How do you measure the mass of a star?
Binary stars – a star system consisting of two stars – are extremely useful. They give all the information needed to measure the stars masses’. Here is how.
Moon sweeps by Saturn and Jupiter May 3-5
Watch for the waning moon to swing to the south of the ringed planet Saturn and then south of the king planet Jupiter around May 3, 4 and 5, 2021.
May 2021 best month for Mercury after sunset
Live in the Northern Hemisphere? If so, May 2021 presents the year’s best month for spotting the planet Mercury in the evening sky.
WHITE HOUSE: Biden to make climate case in first address to Congress
President Biden is expected to use his first congressional address tonight to tout how the first 100 days of his administration have yielded the most ambitious climate policy of any U.S. president.
Yearâs 1st supermoon on April 26-27
The April 2021 full moon presents the first of a “season” of 3-straight full moon supermoons. April’s supermoon is the 2nd closest full moon supermoon of the year.
When is the next tide? Recommended almanacs here
The EarthSky-recommended tide almanacs listed here are based on astronomical influences on the tides. They’ll help you in finding the next high and low tides.
Moon near star Spica on April 25
From around the world tonight, use the waxing gibbous moon to locate Spica, the brightest star in the constellation Virgo the Maiden.
Mercury and Venus pair up at dusk April 24-26
But will you see them? Mercury and Venus are now low in the west after sunset, near the sunset glare. Try to spot their furtive rendezvous at evening dusk April 24, 25 and 26, 2021.
What are Lunar X and Lunar V?
Is Lunar X a sign of an alien visitation? No. It’s an example of how lighting and topography can combine to produce a pattern that seems familiar to the human eye.
Statement by John Englart on Synthetic Turf to Moreland Council
John Englart addressing Moreland Council on Synthetic Turf 14 April 2021 (Image courtesy Moreland Council) I made the following statement to Moreland Council on 14 April 2021 on Synthetic turf and its climate and environmental impact, although a few sections…
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