TEHRAN (ANA)- What is the true definition of a planet, and could there be a more refined definition in the future?

TEHRAN (ANA)- Mosses are among Earth's great terraformers, turning barren rock into fertile soils, and now a team of scientists is proposing these non-vascular plants could do the same on Mars.

TEHRAN (ANA)- A groundbreaking study using sub-daily GPS has improved our understanding of early afterslip following earthquakes, offering a more accurate assessment of seismic hazards and enhancing emergency response and preparedness strategies.

TEHRAN (ANA)- A study from Durham University reveals that stellar magnetic fields could be key to understanding the orbital decay of ‘hot Jupiter’ exoplanets, providing new insights into their eventual consumption by their parent stars.

TEHRAN (ANA)- Solar radiation may have an impact on Earth's deep interior, according to a collaborative study by researchers from China and Romania.

TEHRAN (ANA)- Geologists discovered two new minerals at the world's largest rare-earth mine in northern China, the Chinese Academy of Sciences (CAS) has announced.

TEHRAN (ANA)- A new study highlights how space flight alters kidney function, showing structural changes and potential permanent damage due to microgravity and cosmic radiation and this poses risks for long-term space travel, such as missions to Mars.

TEHRAN (ANA)- NASA’s Hubble Space Telescope captured a striking image of a trio of stars, including the variable star HP Tau, in a reflection nebula.

TEHRAN (ANA)- A team of scientists from the Chinese Academy of Sciences has discovered that glassy materials within the lunar soil samples, which were brought back by the country's Chang'e-5 lunar exploration mission, contain hydroxyl and molecular water generated from a variety of sources.

TEHRAN (ANA)- The European Space Agency’s Mars Express has snapped the telltale traces of ‘spiders’ scattered across the southern polar region of Mars.