@ExploreMars

A project-oriented, international non-profit organization passionately dedicated to awareness and action resulting in the successful human exploration of Mars.

 Earth
exploremars.org/summit/
Joined January 2010
  • Tweets12.4K
  • Following1.3K
  • Followers6.6K
1.1KMedia
Very cool! @USAToday special space edition is out, and it’s all about Artemis II and the lunar program. Check out the digital version here⬇️ usatodayspecial-va.newsmemor…
2
19
3
75
4,943
ExploreMars retweeted
NASA Mars
@NASAMarsSep 21
Sometimes following the water can lead to surprising places💧 A new study of data from Perseverance reveals that rocks in Jezero Crater were shaped by a complex sequence of ancient lakes, groundwater systems, and hydrothermal fluids. 1/2
A panoramic view of a desert landscape with reddish rocks and sand and low hills in the distance. At the center-right of the frame, rover tracks can be seen.

ALT A panoramic view of a desert landscape with reddish rocks and sand and low hills in the distance. At the center-right of the frame, rover tracks can be seen.

37
306
17
2,647
87,578
Next week, NASA is slated to announce the next steps towards actualizing its vision for a Moon Base. Last week, Spaceflight Now Reporter @w_robinsonsmith spoke with Moon Base Program Executive Carlos García-Galán about what the public can expect to learn on June 30.
4
27
5
144
15,679
ExploreMars retweeted
NASA Artemis
@NASAArtemisJun 11
Big week for Artemis III 🚀 Just before NASA introduced the Artemis III crew, the SLS solid rocket booster segments arrived in Florida after a six-day rail journey from Utah. Later this year, teams will begin stacking the boosters that create 75% of the thrust needed at launch.
A gray and black locomotive, marked with three stars on its front, pulls a long line of white rail cars along tracks surrounded by gravel. A bright blue sky provides a clear backdrop. Credit: NASA/Cory S. Huston

ALT A gray and black locomotive, marked with three stars on its front, pulls a long line of white rail cars along tracks surrounded by gravel. A bright blue sky provides a clear backdrop. Credit: NASA/Cory S. Huston

Taken from a low, ground-level perspective, the image shows gravel and grass in the foreground as a white train car passes overhead. The camera angle looks upward, emphasizing the train's size against a backdrop of gray, overcast clouds. Credit: NASA/Frank Michaux

ALT Taken from a low, ground-level perspective, the image shows gravel and grass in the foreground as a white train car passes overhead. The camera angle looks upward, emphasizing the train's size against a backdrop of gray, overcast clouds. Credit: NASA/Frank Michaux

A train crosses a bridge over calm water, its reflection mirrored below. Lush green vegetation frames the scene, and clear blue skies on a sunny day create a bright, picturesque landscape. Credit: NASA/Brandon Hancock

ALT A train crosses a bridge over calm water, its reflection mirrored below. Lush green vegetation frames the scene, and clear blue skies on a sunny day create a bright, picturesque landscape. Credit: NASA/Brandon Hancock

27
238
12
1,865
83,292
ExploreMars retweeted
NASA Mars
@NASAMarsJun 5
Well, well, look who's back! After several months of being hidden in the glare of the Sun, Mars is once again visible in the sky. But only for early risers – the planet appears as a small, reddish "star" low on the eastern horizon just before sunrise.
Mars appears as a small, faint, reddish star in a clear pre-dawn sky above a lake rimmed with mountains on June 5, 2026. Photo: NASA/Bill Dunford

ALT Mars appears as a small, faint, reddish star in a clear pre-dawn sky above a lake rimmed with mountains on June 5, 2026. Photo: NASA/Bill Dunford

53
390
24
2,358
70,970
In an update from NASA this morning, the agency outlines the following for Artemis 3: • The SLS rocket will use a spacer, not the ICPS upper stage • The mission will be LEO only; no high Earth orbit • Astronauts "could potentially enter at least one lander test article" • Artemis 3 will be longer in duration than 9 days • Upgraded heat shield demonstration Remaining unknowns include: • Launch date/window • Timeline for naming astronauts • Precise orbit (altitude/inclination) • Exact mission duration • What science will be onboard • Whether Artemis 3 will include AxEMU spacesuit-lander interface demo nasa.gov/missions/artemis/ar…

NASA Outlines Preliminary Artemis III Mission Plans - NASA

Editor's note: This article was updated May 15, 2026, to add clarification to the spacer design.

nasa.gov
12
87
17
404
75,703
ExploreMars retweeted
Marcia Smith@SpcPlcyOnlineMay 14
House Appropriators Reject Deep Cuts to NASA in FY2027 spacepolicyonline.com/news/h…
7
1
18
2,145
ExploreMars retweeted
NASA Mars
@NASAMarsApr 16
NASA has given approval to begin implementing its project to support @ESA's Rosalind Franklin mission. Scheduled to launch in 2028, this Mars rover will be the first to search for signs of past or present life under the Red Planet’s surface. go.nasa.gov/4vAIeX1
187
858
93
6,646
1,243,901
ExploreMars retweeted
Marcia Smith@SpcPlcyOnlineApr 17
House SS&T will hold a hearing on NASA's FY2027 budget request on Wednesday, Apr 22, at 10:00 am ET, with Isaacman.
7
11
1,153
A new Golden Age of exploration is here and we’re building the team to lead it. NASA Force applications open today at 1pm ET. Join NASA through a 1–2 year appointment and work on the missions pushing America higher, farther, and faster than ever before.
425
1,364
142
11,649
970,385
ExploreMars retweeted
NASA
@NASAApr 11
HOME. The Artemis II crew has arrived back on Earth, ending a nearly 10-day journey around the Moon. The trip took them farther into space than humans have ever gone before, and now they're safely home with us. go.nasa.gov/41r9eL0
Artemis II's Orion spacecraft splashes down in the Pacific Ocean against a clear blue sky. Three large striped parachutes billow above it. Credit: NASA/Joel Kowsky

ALT Artemis II's Orion spacecraft splashes down in the Pacific Ocean against a clear blue sky. Three large striped parachutes billow above it. Credit: NASA/Joel Kowsky

2,348
32,502
1,477
197,287
5,380,132
And splashdown! America is back in the business of sending astronauts to the Moon and bringing them home safely. Reid, Victor, Christina, and Jeremy did an outstanding job. These talented astronauts inspired the world and represented their space agencies and nations as humanity’s ambassadors to the stars. This was a test mission, the first crewed flight of SLS and Orion, pushing farther into the unforgiving environment of space than ever before, and it carried real risk. They accepted that risk for all we stood to learn and for the exciting missions that follow, as we return to the lunar surface, build a Moon base, and prepare for what comes next. And they were not alone. The entire NASA workforce, our commercial and international partners, and the hopes and dreams of people all over the world were with them. The astronauts know it, and you should too. This mission would not have been possible without you. Congratulations. Artemis II, mission accomplished.
1,400
4,751
352
36,883
1,925,000
The @NASAKennedy team is hard at work, getting ready for what comes next.
62
263
18
3,586
284,513
My favorite image so far. Orion, built by human hands in just a few years, set against a moment billions of years in the making.
NASA Artemis
@NASAArtemisApr 7
The eclipse from Orion. On April 6, external cameras attached to the Orion spacecraft's solar array wings captured the Moon backlit by the Sun during a solar eclipse.
The Moon, backlit by the Sun during a solar eclipse, is photographed by NASA\u2019s Orion spacecraft. Orion is visible in the foreground on the left. Earth is reflecting sunlight at the left edge of the Moon, which is slightly brighter than the rest of the disk. The bright spot visible just below the Moon\u2019s bottom right edge is Saturn. Beyond that, the bright spot at the right edge of the image is Mars. Credit: NASA

ALT The Moon, backlit by the Sun during a solar eclipse, is photographed by NASA\u2019s Orion spacecraft. Orion is visible in the foreground on the left. Earth is reflecting sunlight at the left edge of the Moon, which is slightly brighter than the rest of the disk. The bright spot visible just below the Moon\u2019s bottom right edge is Saturn. Beyond that, the bright spot at the right edge of the image is Mars. Credit: NASA

298
1,453
20
15,069
1,202,709
Here's the moment last night when Mission Control in Houston informed the Artemis 2 astronauts that they were now closer to the Moon than the Earth.
26
366
10
3,555
121,381
🚨 This was the Artemis II crew's view this morning from 41,756 miles (67,200 km) up No human has seen a crescent Earth in full since 1972
793
10,119
475
77,065
1,467,735
Cheering on the astronauts and crew of Artemis II from America’s Front Yard. Out of this world! 🚀🇺🇸🏛️🌳🌕
455
6,473
433
42,317
1,103,048
ExploreMars retweeted
Gary Napier@garynapierApr 2
The Artemis II launch as I saw it.
5
15
106
2,751
ExploreMars retweeted
NASA
@NASAApr 2
The Orion spacecraft successfully separated from the upper stage of the rocket, and the "proximity operations" test is underway. The Artemis II astronauts are manually piloting Orion similarly to how they would if they were docking with another spacecraft.
1,411
10,513
406
93,411
4,849,682
ExploreMars retweeted
European Space Agency
@esaApr 2
A few minutes into flight, the rocket’s core stage separated. ✅
5
118
5
1,177
31,256
Load more