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Some of the Martian buttes and mesas on the Red Planet's northern plains. Inside these eroded mounds are layers of clay formed by liquid water.

Mysterious Mars mounds may bolster case for ancient Red Planet ocean

Keith Cooper published 25 January 25

Buttes and mesas in Mars' Chryse Planitia contain clay minerals made from liquid water interacting with the rock nearly 4 billion years ago.

this week in space episode 145

This Week In Space podcast: Episode 145 — We're 'Star Bound' with a guide to America's space program

Space.com Staff published 25 January 25

Space book authors Emily Carney and Bruce McCandless III offer a primer for the new Space Age with a look at how it all started.

Opportunity rover

On this day in space! Jan. 24, 2004: NASA's Opportunity Rover lands on Mars

Hanneke Weitering last updated 25 January 25

On January 24, 2004, NASA's Opportunity Rover landed on Mars to analyze soil and rocks and send pictures of the Red Planet back to Earth.

graphic showing four moon phases, first quarter on january 6, full moon on january 13, third quarter on january 21 and new moon on january 29

What is the moon phase today? Lunar phases 2025

Tariq Malik, Daisy Dobrijevic last updated 25 January 25

Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.

an image of the sun showing a bright white arc of light extending from its left side

Invisible 'flickering' on the sun could predict potentially dangerous solar flares hours in advance

Harry Baker published 25 January 25

Images captured by NASA's Solar Dynamics Observatory have revealed that "coronal loops" give off subtle flashes of ultraviolet light before a solar flare, which could act as an early warning system for dangerous space weather.

On March 3, 2014, at 6:09 a.m. EST, a NASA-funded sounding rocket launched straight into an aurora over Venetie, Alaska. The Ground-to-Rocket Electrodynamics ? Electron Correlative Experiment (GREECE) sounding rocket mission, which launched from Poker Flat Research Range in Poker Flat, Alaska, will study classic curls in the aurora in the night sky. The GREECE mission seeks to understand what combination of events sets up these auroral curls as they're called, in the charged, heated gas ? or plasma ? where aurorae form. This is a piece of information, which in turn, helps paint a picture of the sun-Earth connection and how energy and particles from the sun interact with Earth's own magnetic system, the magnetosphere.

NASA wants to launch rockets into northern lights to study 'black auroras'

Samantha Mathewson published 25 January 25

NASA plans to fly two rockets through active auroras and study the unique ribbons of light that dance across the Alaskan night sky.

Sky chart showing the planetary lineup visible after dark in January 2025. Jupiter is near Aldebaran, the star that makes up the eye of the bull in the constellation Taurus. — Watch 'planetary parade' online for free on Jan. 25 "There's so much universe out there. We need as many people looking up as we can."

On March 3, 2014, at 6:09 a.m. EST, a NASA-funded sounding rocket launched straight into an aurora over Venetie, Alaska. The Ground-to-Rocket Electrodynamics ? Electron Correlative Experiment (GREECE) sounding rocket mission, which launched from Poker Flat Research Range in Poker Flat, Alaska, will study classic curls in the aurora in the night sky. The GREECE mission seeks to understand what combination of events sets up these auroral curls as they're called, in the charged, heated gas ? or plasma ? where aurorae form. This is a piece of information, which in turn, helps paint a picture of the sun-Earth connection and how energy and particles from the sun interact with Earth's own magnetic system, the magnetosphere. — NASA wants to launch rockets into northern lights to study 'black auroras' NASA plans to fly two rockets through active auroras and study the unique ribbons of light that dance across the Alaskan night sky.

a white cylindrical spacecraft with four skinny solar panels and two larger black panels fires blue exhaust from three after engines arranged in a line. — Electric spacecraft propulsion may soon take a leap, thanks to new supercomputer Electric propulsion is being increasingly used on space missions and could ultimately replace thrusters using chemical rockets.

An illustration of a blurred planet that looks like it has super high wind speeds. — Scientists discover exoplanet with supersonic winds — the fastest in the known universe With winds blowing at 20,500 mph, "the planet has complex weather patterns just like Earth and other planets of our own system," scientists said.

a blue-and-white planet on a black background — Blue Ghost moon lander sees Earth as a 'blue marble' from orbit (photo) "Our GhostRiders captured the beauty of our home planet during another Earth orbit burn."

An illustration of the JWST investigating some hypothetical exoplanets witha graph in th ebackground showing its exoplanet discoveries thus far — 3 years of James Webb Space Telescope data on alien worlds now available online "The James Webb Space Telescope has been truly revolutionary- it is now hard to imagine what life was like without it!"

this week in space episode 145 — This Week In Space podcast: Episode 145 — We're 'Star Bound' with a guide to America's space program Space book authors Emily Carney and Bruce McCandless III offer a primer for the new Space Age with a look at how it all started.

Tech

Beam me to the stars: Scientists propose wild new interstellar travel tech

By Victoria Corless published 22 January 25

"Chemical rockets that we use today, even with the extra speed boost from flying by planets, or from swinging by the sun for a boost, just don't have the ability to scale to useful interstellar speeds."

a black-and-white rocket launches at night above a bright plume of fire

Rocket Lab selected to launch more hypersonic test vehicles for US military

By Julian Dossett published 21 January 25

The new 5-year contract that focuses on hypersonic technology is worth $1.45 billion.

MORE FROM SPACE...

1
Mysterious Mars mounds may bolster case for ancient Red Planet ocean
2
This Week In Space podcast: Episode 145 — We're 'Star Bound' with a guide to America's space program
3
Invisible 'flickering' on the sun could predict potentially dangerous solar flares hours in advance
4
NASA wants to launch rockets into northern lights to study 'black auroras'
5
Electric spacecraft propulsion may soon take a leap, thanks to new supercomputer

Spaceflight

a white-and-blue rocket launches under a blue sky

Blue Origin to simulate moon gravity on Jan. 28 New Shepard suborbital launch

By Mike Wall published 24 January 25

Blue Origin will launch the 29th mission of its New Shepard suborbital vehicle on Jan. 28, on an uncrewed research flight that will simulate lunar gravity conditions.

Human Spaceflight

The crew of the STS-51L mission of the space shuttle Challenger, which was lost shortly after launch on Jan. 28, 1986. Left to right: Mission Specialist Ellison S. Onizuka, Pilot Michael J. Smith, Payload Specialist Christa McAuliffe, Commander Francis R. “Dick” Scobee, Payload Specialist Gregory B. Jarvis, Mission Specialist Judith A. Resnik, Mission Specialist Ronald E. McNair.

NASA honors fallen astronauts with 'Day of Remembrance' ceremony

By Mike Wall published 23 January 25

NASA honored its fallen space explorers during ceremonies at multiple sites on Thursday (Jan. 23).

Human Spaceflight

Science & Astronomy

Could we travel to parallel universes?

By Paul Sutter published 25 January 25

If parallel universes exist, can we access them? Let's explore the possibility.

Side by side comparison of the supermassive black hole M87* as seen in April 2018 and a year earlier in April 2017

The 1st monster black hole ever imaged has messy eating habits

By Robert Lea published 24 January 25

A new analysis of M87*, the first black hole imaged by humanity, has revealed turbulence in the matter around it, which this supermassive black hole feasts upon.

Meet the team

Tariq Malik

Tariq Malik

Editor-in-Chief

Brett Tingley

Managing Editor

Mike Wall

Dr. Mike Wall

Spaceflight Editor

Monisha Ravisetti

Monisha Ravisetti

Astronomy Editor

a woman wearing a yellow hat smiles under the blue light of the polar night.

Dr. Daisy Dobrijevic

Reference Editor

Jason Parnell-Brookes

Jason Parnell-Brookes

Skywatching & Cameras Editor

Robert Lea is a contributing writer for Space.com

Rob Lea

Senior Writer

Josh Dinner

Josh Dinner

Writer, Content Manager

Alexander Cox

Alexander Cox

Staff Writer

Steve Spaleta

Steve Spaleta

Senior Producer

Search For Life

a person in a bulky white spacesuit stands next to a wheeled rover and a cylindrical spacecraft on four legs, all on a dusty grey surface

25 biggest space conspiracy theories: Debunked

By Ailsa Harvey published 17 January 25

Here we debunk some of the most common and enduring space conspiracies.

Search for Life

An artist's concept of NASA's Habitable Worlds Observatory in space.

NASA wants a 'Super-Hubble' space telescope to search for life on alien worlds

By Tariq Malik published 16 January 25

The Habitable Worlds Observatory is a flagship NASA telescope that could answer the ultimate question.

Search for Life

What if life on Venus is just life from Earth?

By Monisha Ravisetti published 16 January 25

Scientists think it's possible that life cells from Earth could've been transferred to Venus, thanks to asteroid impacts over the last few billion years.

Search for Life

Skywatching

Wes Learns to Use a Telescope

Thinking of Buying a Telescope? Here's Our Advice

By Joe Rao published 24 January 25

In some cases, binoculars are a better bet.

Total lunar eclipse September 2025: When and where to see the 'Blood Moon' lunar eclipse

By Jamie Carter published 24 January 25

Reference The second total lunar eclipse of 2025 will be visible from Asia and western Australia on Sept. 7-8, 2025.

a charred rocket stands upright on a flat barge lit by lights in early morning fog

Space pictures! See our space image of the day

By Space.com Staff last updated 24 January 25

Space.com's image of the day rounds up the most awe-inspiring space photos right here, with a new image everyday.

Astrophotography

Entertainment

Split image showing three members of Section 31. Left: a Man with his hands together, only the fingertips touching; Middle: A woman in a black overcoat; Right: A cartoon man with purple hair. The image has the text "Star Trek: What is Section 31?" over the top.

What is Section 31? The 'Star Trek' spy organization explained

By Richard Edwards published 24 January 25

As the shadowy branch of Starfleet Intelligence gets its very own movie, we look back at Section 31's morally dubious history.

Space Movies & Shows

Artwork for Marvel Ultimate Alliance 3: The Black Order.

Best Marvel games of all time

By Fran Ruiz last updated 24 January 25

The Avengers, the X-Men, and many more Marvel superheroes have assembled over the years in video games. These are the best Marvel games so far.

Space Games & Toys

Game box art for the video game 'Star Wars: Episode I: Jedi Power Battles.' Top center is the title 'Star Wars Episode 1 Jedi Power Battles.' Two brown-robed male Jedis are fighting off an army of attacking droids. Each is wielding a lightsaber.

'Star Wars: Episode I: Jedi Power Battles' continues to be the most fascinating 'The Phantom Menace' tie-in video game

By Fran Ruiz published 23 January 25

Despite the tepid reception back in 2000, the Jedi Power Battles remaster is a fun return to simpler times when Star Wars video games were allowed to be weird.

Space Games & Toys

References

Split image showing three members of Section 31. Left: a Man with his hands together, only the fingertips touching; Middle: A woman in a black overcoat; Right: A cartoon man with purple hair. The image has the text "Star Trek: What is Section 31?" over the top.

What is Section 31? The 'Star Trek' spy organization explained

By Richard Edwards published 24 January 25

As the shadowy branch of Starfleet Intelligence gets its very own movie, we look back at Section 31's morally dubious history.

Space Movies & Shows

Total lunar eclipse September 2025: When and where to see the 'Blood Moon' lunar eclipse

By Jamie Carter published 24 January 25

Reference The second total lunar eclipse of 2025 will be visible from Asia and western Australia on Sept. 7-8, 2025.

How long does it take to get to Mars?

By Daisy Dobrijevic last updated 23 January 25

Reference We explore how long it takes to get to Mars and the factors that affect a journey to the Red Planet.

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