
Copernical Team
Lockheed Martin to supply 36 Small Satellites to advance SDA satcom network

In the service of planetary science, astrophysics and heliophysics

How a cup of water can unlock the secrets of our Universe

Accretion disks: How big are they really?

After Moon landing, India eyes the Sun

Huginn begins

Japan postpones 'Moon Sniper' launch for third time

Japan postpones 'Moon Sniper' liftoff for third time

Japan's space agency on Monday postponed for the third time the launch of its "Moon Sniper" lunar mission due to poor weather.
The H2-A rocket due to blast off from the southern island of Tanegashima was also carrying a research satellite developed with NASA and the European Space Agency.
The Japan Aerospace Exploration Agency (JAXA) gave no new date for the start of the mission, which comes after India successfully landed a probe on the Moon last week.
MHI Launch Services, the rocket co-developer, said on the social media platform X that the mission was called off "because it was confirmed that the upper wind does not satisfy the constraints at launch".
Last week India landed a craft near the Moon's south pole, a historic triumph for the world's most populous nation and its low-cost space program.
Previously, only the United States, Russia and China had managed to put a spacecraft on the lunar surface, and none on the south pole.
India's success came days after a Russian probe crashed in the same region, and four years after a previous Indian attempt failed at the last moment.
India lands a spacecraft near the moon's south pole, a first for the world as it joins elite club

Simulations suggest only 22 people are required to start a colony on Mars

A team of computational social scientists at George Mason University has found via simulations that 22 people is the minimum number needed to start a human colony on Mars. The group has posted a paper describing their simulation on the arXiv preprint server.
As humans around the globe ponder the possibility of one day sending people to Mars, and then at some later date, establishing a colony, scientists are exploring ways to overcome the hurdles standing in the way of achieving such goals. One factor that needs to be addressed, according to the team, is determining how many people could sustain a Mars colony, and what types of people are required.
To find possible answers, the team created a model simulating a Mars colony, focused specifically on how many people are required to create a viable colony as well as the characteristics that would most likely contribute to the success of such a colony. To that end, they used data from past endeavors, such as questionnaires filled out by groups aboard the International Space Station or those living in close quarters in the Arctic for months at a time.