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ExoMars Rover

Astronomy in Space with David Dickinson

European ExoMars Mission Delayed to 2022

The European and Roscosmos space agencies have postponed the launch of their Kazachok lander and Rosalind Franklin rover to 2022.

Celestial Objects to Observe

Deep-sky Observing the Easy Way

Cold weather keeping you inside at night? Limit your time outdoors and make the most of your telescope time with these easy-to-find deep-sky gems.

Iron rain on ultra-hot planet

Exoplanets

Iron Might Rain on This Hot Jupiter

New observations show a signature that could come from iron rain on one side of hot Jupiter WASP-76b.

Two neutron stars prior to merger

Stellar Science

Gravitational Waves Put Ruler to Neutron Stars

Scientists have combined observations of gravitational waves from a neutron star collision with nuclear theory to shed light on the size and nature of neutron stars.

Perseverance

Astronomy in Space with David Dickinson

NASA Announces Next Mars Rover Name: Perseverance

NASA announced today that its next Mars rover mission now has its official name: Perseverance.

Sunset from Camp Wesumkee

People, Places, and Events

Winter Stargazing in the Florida Keys

Every February, amateur astronomers flock to the Florida Keys to a dark-sky site for a week of stargazing at the Winter Star Party.

Gibbous Moon

Celestial Objects to Observe

Diving Into the Moon's Bay of Rainbows

This curious lunar feature — visible the nights of March 4th and April 2nd — is a delight in small scopes or even binoculars.

Mini-moon discovered

Moon

Earth Has A Mini-Moon — But Not for Long!

Two astronomers discovered a temporary mini-moon captured by Earth — but it's about to win its freedom.

New Horizon

Astronomy in Space with David Dickinson

New Horizons Recruits Amateurs to Sight Stars

The New Horizons team wants you to help measure the distance to two stars, yielding the longest-ever baseline measurement of a key cosmic yardstick.

Sky Tour Astronomy Podcast

March 2020: A Planet Trio and More!

During March, the cosmos offers a lot to see both before sunrise and after sunset. To get a guided tour of the month's highlights, play or download this month's Sky Tour episode.

Yutu 2's view

Spacecraft and Space Missions

What Lies Beneath the Moon's Farside?

The Chang’e 4 mission made the first-ever landing on the farside of the Moon last year — now it’s providing a look at what lies below its surface.

Pleiades

Night Sky Sights

Meet the Pleiades, the Seven Sisters

The Pleiades are actually a star cluster of thousands of stars enshrouded in dust and gas, and they're easy to find if you know where to look.

Then and now

Stellar Science

The Fall and Rise of Betelgeuse

With its recent uptick in brightness, Betelgeuse appears to be slowly returning to normal. But will it? Astronomers urge us to keep watch.

Insight lander on Mars

Solar System

NASA’s Insight Detects Many Marsquakes on the Red Planet

Persistent tremors on Mars suggest the planet’s interior is cooling and hint that there might be a pocket of magma beneath the surface.

Massive, dusty, star-forming galaxy

Galaxies

What Snuffed Out Star Formation in This “Monster” Galaxy?

Astronomers have discovered a galaxy that formed five times as many stars as the Milky Way within 2 billion years after the Big Bang — but then quickly quelled any further starbirth.

M35 in Gemini

Night Sky Sights

Explore the Winter Hexagon Tonight

This expansive region is home to plenty of bright stars and deep-sky wonders.

SLS rocket

Astronomy in Space with David Dickinson

What's in the New Proposed NASA Budget

The President's 2021 budget request for NASA would push hard for human lunar exploration at the expense of several key programs.

Solar System

New Horizons Reveals Full Picture of Arrokoth...and How Planets Form

New Horizon’s flyby of Arrokoth, a planetesimal in the Kuiper Belt, reveals a pristine object untouched since the solar system’s origin. Its shape and geology show that planetesimals form more gently than previously thought.

Betelgeuse telescopic view

Variable Stars

Is Betelgeuse Approaching a Crossroads?

Astronomers all over are waiting with bated breath to see what Betelgeuse will do next. Is it going to start brightening again on February 21st? Or will it continue to surprise?

People, Places, and Events

Do You Love the Stars? Do Some Astronomy This Valentine's Day

Whether you're celebrating Valentine's Day or boycotting it, anyone visiting this site loves the stars. Here's a chance to participate in an effort to make sure future generations love them too.

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