Summer officially ends in the northern hemisphere tomorrow, and we enter the autumn. This is the time of year when the length of day and night are exactly equal. Known as the September equinox, it always takes place sometime around the 21st of the month. This year, it takes place on 22 September at 1431 BST.
At this moment the sun will be located directly on the celestial equator, the projection of Earth’s equator into the sky. This means the sun will pretty much rise due east and set due west on that day. For the next three months, the sun will rise and set ever more southwards along the horizon.
For the northern hemisphere, this means it will follow a shorter path across the sky, leading to shorter days and longer nights. The difference in length of day and night across the year drives the different seasons and is the result of Earth’s tilted rotation axis. In the southern hemisphere, the September solstice marks the turning point from winter into spring.
America faces an epic choice …
… in the coming months, and the results will define the country for a generation. These are perilous times. Over the last four years, much of what the Guardian holds dear has been threatened – democracy, civility, truth.
The country is at a crossroads. The Supreme Court hangs in the balance – and with it, the future of abortion and voting rights, healthcare, climate policy and much more. Science is in a battle with conjecture and instinct to determine policy in the middle of a pandemic. At the same time, the US is reckoning with centuries of racial injustice – as the White House stokes division along racial lines. At a time like this, an independent news organization that fights for truth and holds power to account is not just optional. It is essential.
Like many news organizations, the Guardian has been significantly impacted by the pandemic. We rely to an ever greater extent on our readers, both for the moral force to continue doing journalism at a time like this and for the financial strength to facilitate that reporting.
We believe every one of us deserves equal access to fact-based news and analysis. We’ve decided to keep Guardian journalism free for all readers, regardless of where they live or what they can afford to pay. This is made possible thanks to the support we receive from readers across America in all 50 states.
Post courtesy of the Guardian