The New York Times has offered this calendar to readers since 2017. It’s a collection of newsworthy events in spaceflight and astronomy curated by the paper’s journalists.
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Even as the Northern Hemisphere experiences the heat of summer, our planet is at aphelion, the farthest it will get from the sun during its elliptical orbit. Read more about aphelion, why it happens and why it’s decreasing.
Europe’s final Ariane 5 rocket completed its last mission in July 2023, and problems with other rockets have left the continent’s space program reliant on SpaceX and others for trips to space. The Ariane 6 rocket could lift off on a demonstration flight that aims to restore Europe’s ability to reach space on its own after a series of delays. Other customers are also waiting to fly on the rocket.
Southern Delta Aquarids active from July 12 to Aug. 23.
Alpha Capricornids active from July 3 to Aug. 15.
Peak night for both: July 30-31.
Two meteor showers peak at the end of July: the Southern Delta Aquarids, best seen in the Southern Hemisphere in the constellation Aquarius, and the Alpha Capricornids, which are visible from both hemispheres in Capricorn.
With the moon around 40 percent full, the already-faint Southern Delta Aquarids, sometimes spelled Aquariids, may be difficult to see. The Alpha Capricornids will be bright, but they rarely create more than five meteors an hour.
In 2021, Jared Isaacman, the billionaire founder of the payments processor Shift4, took three people to space with him for a mission called Inspiration4. In 2022, he announced that there would be additional flights. This year, with a new crew in the SpaceX Dragon capsule, Mr. Isaacman wants to fly to a higher orbit and attempt a spacewalk. The Polaris Program announced the mission will launch no earlier than July 31.
ESCAPADE is a small NASA-funded mission involving a pair of orbiters, Blue and Gold, that are operated by the Berkeley Space Sciences Laboratory. As they travel around Mars, they will study the magnetic bubble around the red planet. Potentially, the two small satellites could launch on the first flight by New Glenn, the large orbital rocket built by Blue Origin, the space company founded by Jeff Bezos. We will provide a more precise launch date for this mission when NASA announces one.
Active from July 17 to Aug. 24. Peak night: Aug 11 to 12
A favorite among skywatchers, the Perseids are one of the strongest showers each year, with as many as 100 long, colorful streaks an hour.
It is a show best viewed from the Northern Hemisphere. This year, observers may have to compete with light from the moon, which will be nearly half full on the night the Perseids peak.
A partial lunar eclipse occurs when the sun, Earth and moon are positioned almost, but not quite, in a straight line. Unlike the penumbral eclipse in March, this time the moon will pass through a portion of the umbra, or the darkest part of Earth’s shadow cast by the sun. As a result, a part of the lunar surface will be completely obscured to viewers on Earth’s night side, which in this case will include the Americas, Africa and Europe.
The autumnal equinox is one of two points in Earth’s orbit where the sun creates equal periods of daytime and nighttime across the globe. Many mark it as the first day of the fall. See what it looks like from space.
NASA’s Double Asteroid Redirection Test slammed into Dimorphos in 2022 to test whether altering a space rock’s trajectory could protect Earth from future asteroid strikes. Europe’s Hera mission is a follow-up, providing a deeper assessment of the effects of the DART spacecraft’s collision. We will provide a more precise launch date for this mission when ESA announces one.
Europa Clipper is a major NASA mission headed to Jupiter’s moon, Europa, which has an icy exterior concealing a vast ocean that scientists say may have the right conditions for life. After it arrives at Europa in 2030, the spacecraft will attempt no landing there, but Clipper will study the moon during dozens of flybys. We will provide a more precise launch date for this mission when NASA announces one.
The NASA-ISRO SAR Mission, or NISAR, is a collaborative project between the American and Indian space agencies. Launching from an Indian rocket, the spacecraft will carry a variety of sensors, some provided by NASA, to study shifts in Earth’s land- and ice-covered surfaces using synthetic aperture radar. NASA says the launch will occur in early 2024, and ISRO has suggested it will be within the first quarter of the year. We will provide a more precise launch date for this mission when NASA and ISRO announce one.
First detected by Chinese astronomers in January 2023, Comet Tsuchinshan-ATLAS comes within 44 million miles of Earth just a couple weeks after a close encounter with the sun.
If the comet survives the rendezvous with our home star, scientists expect an impressive sight. Astute observers may have already spotted the comet in morning skies earlier in October, but it should be especially bright in the evening from now through Oct. 24.
Active from Oct. 2 to Nov. 7. Peak night: Oct. 20 to 21
The Orionids are well-loved by meteor shower aficionados because of the bright, speedy streaks they make near the group of stars known as Orion’s Belt. Like the Eta Aquarid meteor shower, which peaked in early May, the Orionids result when Earth passes through debris from Halley’s Comet.
This shower can be seen from both hemispheres. But viewers this year may have trouble spotting some of the fainter streaks because the moon will be over 80 percent full.
Active from Nov. 6 to 30. Peak night: Nov. 16 to 17
The Leonids produce some of the fastest meteors each year, at 44 miles per second, with bright, long tails.
Meteors from the Leonids can be spotted in the constellation Leo, and they will be visible from both the Northern and Southern Hemispheres. This year, spotting the Leonids will be difficult because of the nearly full moon.
Active from Dec. 11 to 20. Peak night: Dec. 13 to 14
Caused by debris from an asteroid, the Geminids are one of the strongest and most popular meteor showers each year. This shower is best viewed from the Northern Hemisphere, but observers south of the Equator can also witness the show.
Like the Leonids last month, the Geminids peak during a nearly full moon, which may wash out the light from fainter streaks in the sky.
It’s the scientific start to winter in the Northern Hemisphere, when this half of the world tilts away from the sun. Read more about the solstice.
Active from Dec. 17 to 26. Peak night: Dec. 21 to 22
A winter solstice light show, meteors from the Ursids appear near the Little Dipper, which is part of the constellation Ursa Minor.
Only skywatchers in the Northern Hemisphere will have a chance of seeing this shower. The moon will be half full, making streaks in the sky even more challenging to spot.
In what could be the first private mission to another planet, the company Rocket Lab is sending a Photon spacecraft toward Venus, where it will fire a small probe to briefly study the toxic world’s atmosphere.
Our universe might be chock-full of cosmic wonder, but you can only observe a fraction of astronomical phenomena with your naked eye. Meteor showers, natural fireworks that streak brightly across the night sky, are one of them.
Where meteor showers come from
There is a chance you might see a meteor on any given night, but you are most likely to catch one during a shower. Meteor showers are caused by Earth passing through the rubble trailing a comet or asteroid as it swings around the sun. This debris, which can be as small as a grain of sand, leaves behind a glowing stream of light as it burns up in Earth’s atmosphere.
Meteor showers occur around the same time every year and can last for days or weeks. But there is only a small window when each shower is at its peak, which happens when Earth reaches the densest part of the cosmic debris. The peak is the best time to look for a shower. From our point of view on Earth, the meteors will appear to come from the same point in the sky.
The Perseid meteor shower, for example, peaks in mid-August from the constellation Perseus. The Geminids, which occur every December, radiate from the constellation Gemini.
How to watch a meteor shower
Michelle Nichols, the director of public observing at the Adler Planetarium in Chicago, recommends forgoing the use of telescopes or binoculars while watching a meteor shower.
“You just need your eyes and, ideally, a dark sky,” she said.
That’s because meteors can shoot across large swaths of the sky, so observing equipment can limit your field of view.
Some showers are strong enough to produce up to 100 streaks an hour, according to the American Meteor Society, though you likely won’t see that many.
“Almost everybody is under a light polluted sky,” Ms. Nichols said. “You may think you’re under a dark sky, but in reality, even in a small town, you can have bright lights nearby.”
Planetariums, local astronomy clubs or even maps like this one can help you figure out where to get away from excessive light. The best conditions for catching a meteor shower are a clear sky with no moon or cloud cover, at sometime between midnight and sunrise. (Moonlight affects visibility in the same way as light pollution, washing out fainter sources of light in the sky.) Make sure to give your eyes at least 30 minutes to adjust to seeing in the dark.
Ms. Nichols also recommends wearing layers, even during the summer. “You’re going to be sitting there for quite a while, watching,” she said. “It’s going to get chilly, even in August.”
Bring a cup of cocoa or tea for even more warmth. Then sit back, scan the sky and enjoy the show.
The vernal equinox is one of two points in Earth’s orbit where the sun creates equal periods of daytime and nighttime across the globe. Many people mark it as the first day of the spring. In 2024, it begins Tuesday evening in American time zones but on March 20 in coordinated universal time. See what it looks like from space.
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The European Parliament’s 2023 Sakharov Prize for Freedom of Thought has been awarded to Jina Mahsa Amini and the Woman, Life, Freedom movement in Iran.
