Tag

Earth

All articles tagged with #earth

science19 hours ago•4 min saved

Mars’ Gravity May Have Shaped Earth's Ice Ages and Evolution

New simulations suggest Mars’ gravity subtly steers Earth’s orbit and tilt, influencing Milankovitch climate cycles that drive Ice Ages. When Mars is removed from the model, 100,000-year and 2.3-million-year cycles disappear; increasing Mars’ mass shortens these cycles and stabilizes Earth’s tilt. The findings imply Earth’s climate—and potentially its evolution—could have been very different without Mars, with broader implications for studying exoplanet climates.

via BBC Sky at Night Magazine|

#earth #exoplanets #ice-ages

science6 days ago•4 min saved

Earth's Elements May Have Seeded the Moon's Hidden Resources

Scientists suggest Earth's magnetic field has transferred atmospheric particles to the moon over billions of years, potentially leaving a record of Earth's past in lunar soil and providing resources for future lunar explorers.

via SciTechDaily|

#atmosphere #earth #lunar-soil

science9 days ago•7 min saved

Space-origin theories gain support in understanding Earth's life beginnings

New experiments support the 'RNA world' hypothesis by demonstrating how RNA could have formed on early Earth, with borates playing a beneficial role in stabilizing RNA components, suggesting a plausible pathway for the origin of life around 4.3 billion years ago, possibly delivered by asteroid impacts.

via Space|

#astrobiology #earth #experiments

science11 days ago•5 min saved

Earth's Closest Approach to the Sun and a Notable Cyber Scam in Karwar

The sun appears largest in the sky on January 3, 2026, during Earth's closest approach to the star, known as perihelion, but the difference is minimal and has no significant effect on Earth's climate or seasons.

via Space|

#astronomy #earth #perihelion

science13 days ago•1 min saved

Earth's Closest Approach to the Sun and Celestial Events in Early January

On January 3, 2026, Earth will reach its closest point to the Sun, called perihelion, making the Sun appear slightly larger in the sky and in photographs, with the smallest distance of about 147.1 million km. Astronomers warn about the risks of observing the Sun without proper filters, despite January not being ideal for solar viewing.

via Mehr News Agency|

#astronomy #earth #perihelion

science15 days ago•4 min saved

NASA Announces Earth’s New 50-Year Mini-Moon

NASA has confirmed the discovery of a new quasi-satellite asteroid, 2025 PN7, which will stay in a near-synchronous orbit with Earth until the early 2080s, acting as a temporary 'mini-moon' without being gravitationally bound.

via indiandefencereview.com|

#2025-pn7 #asteroid #earth

science16 days ago•5 min saved

Could Life on Earth Have Originated from Mars?

The article explores the hypothesis that life on Earth may have originated from microorganisms on Mars, which could have been transported via meteorites. It discusses the timing of planetary formation, early conditions on Mars and Earth, and the challenges of microbial survival during space travel, ultimately questioning whether Earth’s life could have come from Mars or if it originated independently on Earth.

via The Conversation|

#astrobiology #earth #mars

science19 days ago•2 min saved

Earth's Closest Approach to the Sun and Its Seasonal Effects

Earth is closest to the Sun at perihelion in January, but it’s winter in the Northern Hemisphere because the planet’s axial tilt causes seasonal changes, not its distance from the Sun. The tilt results in varying sunlight exposure, creating summer and winter, while the elliptical orbit’s slight distance variation has minimal impact on temperatures.

via The Daily Galaxy|

#axial-tilt #earth #orbit

science21 days ago•4 min saved

Earth's Perihelion and Its Impact on Seasons and Sun Observations

Earth's closest approach to the Sun, called perihelion, occurs during winter in the Northern Hemisphere due to the Earth's axial tilt and elliptical orbit, which causes seasonal variations in sunlight exposure. This timing is a coincidence and varies over thousands of years due to gravitational influences and orbital changes.

via IFLScience|

#axial-tilt #earth #orbit

science23 days ago•3 min saved

The Truth About Digging Through the Earth

Drilling straight through the Earth is currently impossible due to extreme heat and pressure, with the deepest borehole reaching only about 12 kilometers, far from penetrating the Earth's crust or core. The immense temperatures and pressures at the Earth's interior would destroy drilling equipment and make such a project unfeasible with current technology.

via The Daily Galaxy|

#drilling #earth #geology

science24 days ago•2 min saved

Moon's Drift Away from Earth and Its Future Impact

The Moon is gradually drifting away from Earth at about 3.8 centimeters per year, a process driven by tidal interactions that have influenced Earth's rotation and the Moon's orbit over billions of years. This slow migration will eventually lead to a longer day length and possibly a tidal lock, with profound implications for Earth's future and the solar system's stability, especially as the Sun ages.

via The Daily Galaxy|

#earth #future-predictions #moon

science25 days ago•3 min saved

Can a Drill Pass Through the Earth from One Side to the Other?

The article explores the possibility of drilling straight through the Earth, highlighting current deep drilling efforts like China's 10,000-meter hole and Russia's Kola Superdeep Borehole, and discusses the insurmountable challenges posed by extreme pressure and temperature as one approaches the Earth's core, making a complete tunnel through the planet currently impossible.

via IFLScience|

#deep-boreholes #drilling #earth

science25 days ago•3 min saved

Humans Unintentionally Form a Global Barrier

Humans have inadvertently created a human-made barrier around Earth by using radio waves in the VLF range, which influence the Van Allen radiation belts and could potentially be used to protect the planet from cosmic radiation and solar storms.

via IFLScience|

#cosmic-radiation #earth #magnetic-field

science1 month ago•3 min saved

New Evidence Suggests a Nearby Planet Was the Moon's Origin

New research suggests that a sibling planet, Theia, once orbited close to Earth and may have caused the giant impact that formed the moon, revealing that Earth and Theia were likely local siblings formed in the inner solar system.

via Live Science|

#earth #moon #planetary-impact

science1 month ago•2 min saved

Stunning Mars Photo Reveals Unexpected Detail, Astonishing Viewers

A high-quality image from NASA's Perseverance Rover on Mars has sparked reactions highlighting the planet's bleak, barren landscape, contrasting with Earth's richness and prompting reflections on Earth's fragility and the importance of protecting our home.

via UNILAD|

#earth #mars #nasa