Tag

Earths Rotation

All articles tagged with #earths rotation

space1 month ago•3 min saved

Banana Orbits: Why Rockets Curve East to Reach Orbit

Rockets don’t fly straight; they perform a gravity turn, curving eastward along a brachistochrone-like path to gain speed with minimal fuel. This tilt helps rockets reach orbit by balancing thrust and gravity as they travel downrange, taking advantage of Earth’s rotation—especially near the equator—to maximize boost. Suborbital flights go up and back down, but orbital missions require a stable, perpetual fall around Earth, achieved by maintaining the right downrange velocity and trajectory.

via Jalopnik|

#earths-rotation #equator #gravity-turn

planet-earth3 months ago•68 min saved

Humans Are Slowing Earth's Spin at a Record Pace, Study Finds

New research ties climate-change–driven sea-level rise to a record-fast lengthening of Earth's day: about 1.33 milliseconds per century today, with warming scenarios predicting up to 2.62 milliseconds per century by 2080. While the Moon’s gravity, glacial rebound, and winds modulate the effect, the human-caused signal is growing; past day lengths were inferred from fossil foraminifera. The current rate is among the fastest in 3.6 billion years and could affect precise timekeeping and spacecraft navigation in the future.

via Live Science|

#climate-change #day-length #earths-rotation

science6 months ago•10 min saved

Top Space Highlights and Photos of 2025

The article highlights the top 12 space stories of 2025, including international cooperation to prevent satellite collisions, a sudden disappearance of a lake in Quebec, the James Webb Space Telescope's study of an interstellar comet, Earth's shortest days, and the return of Soviet and Russian spacecraft, with a focus on how political and technological developments shaped the year's space events.

via Space|

#china-space-cooperation #earths-rotation #interstellar-comet

science6 months ago•2 min saved

Scientists Uncover Why Earth's Rotation Halted for a Billion Years

Earth's rotation paused at a 19-hour day for nearly a billion years due to a rare balance between lunar and solar atmospheric tides, impacting atmospheric oxygen levels and delaying the rise of complex life, with subtle ongoing changes influenced by Earth's deep interior.

via The Daily Galaxy|

#atmospheric-tides #billion-years #earths-rotation

science9 months ago•6 min saved

The Mystery of Why We Can't Feel Earth's Movement

The article explains why we can't feel Earth's movement despite its high speeds, highlighting that Earth's steady, smooth motion and gravity keep us grounded, and that we observe Earth's movement through astronomical clues like day/night cycles and changing star positions.

via The Conversation|

#astronomy #earths-orbit #earths-rotation

science10 months ago•4 min saved

Earth's Slowing Rotation and Its Link to Oxygen Levels

Earth's gradual slowing of its rotation, caused by the Moon's gravitational pull, may have influenced the timing and pattern of Earth's oxygenation, particularly through its effect on microbial oxygen production during events like the Great Oxidation Event, by affecting the duration of daylight and microbial activity.

via ScienceAlert|

#cyanobacteria #earths-rotation #great-oxidation-event

science11 months ago•3 min saved

Earth's Rotation Anomalies and the Shortening of Days

Earth's rotation is unexpectedly speeding up, making August 5, 2025, one of the shortest days on record by just 1.25 milliseconds less than 24 hours, a phenomenon scientists are still trying to understand, possibly linked to changes in Earth's liquid core or lunar influences.

via Space|

#2025-dates #earths-rotation #earths-spin

science1 year ago•5 min saved

De-Extinction Efforts Aim to Bring Back the Giant Moa and Shift Earth's Poles

This week in science news, Earth's days are slightly shortening due to lunar gravitational effects, giant moa birds may be resurrected through de-extinction efforts, Earth's poles are shifting because of large dams, and new cosmic structures like the 'Cosmic Owl' have been observed by the James Webb Space Telescope. Additionally, climate-related health issues such as hyponatremia are increasing with global warming.

via Live Science|

#de-extinction #earths-poles-shift #earths-rotation

science1 year ago•3 min saved

NASA Warns of China’s Water Project Potentially Disrupting Earth's Rotation and Global Time

NASA research suggests that the massive water reservoir of China's Three Gorges Dam has a measurable, though tiny, effect on Earth's rotation by shifting mass toward the equator, highlighting how large-scale infrastructure can influence planetary physics.

via The Daily Galaxy|

#earths-rotation #geophysics #mass-redistribution

politics-environment-science2 years ago•8 min saved

GOP Rivals Rally Behind Trump Amid Praise from Haley and DeSantis

At the Republican National Convention, former rivals like Nikki Haley and Ron DeSantis endorsed Donald Trump, emphasizing party unity. Meanwhile, new studies reveal that melting ice is slowing Earth's rotation and affecting its axis, highlighting the profound impact of climate change.

via NBC News|

#climate-change #donald-trump #earths-rotation

scienceenvironment2 years ago•4 min saved

Climate Change Slows Earth's Spin, Lengthens Days

New research indicates that climate change-induced ice melt is redistributing Earth's mass towards the equator, slowing its rotation, shifting its axis, and even affecting its inner core. This dynamic could eventually rival the moon's tidal forces in influencing Earth's spin, with significant implications for timekeeping and space navigation.

via NBC News|

#climate-change #earths-core #earths-rotation

science-and-environment2 years ago•1 min saved

Climate Change Slows Earth's Spin, Lengthens Days

New research indicates that climate change is lengthening days by causing glaciers and polar ice sheets to melt, which redistributes water closer to the equator and slows Earth's rotation. This effect has accelerated since 2000 and could have significant implications for technologies reliant on precise timing, such as navigation and data centers.

via CBS News|

#climate-change #earths-rotation #glaciers

scienceenvironment2 years ago•2 min saved

Melting Ice Sheets Are Slowing Earth's Spin, Extending Days

A new study reveals that the melting of polar ice caps is causing Earth to spin more slowly, increasing the length of days at an unprecedented rate. This change, driven by the redistribution of mass from melting ice, could have significant implications for space and Earth navigation, potentially surpassing the deceleration effects caused by the Moon's gravitational pull by the end of the 21st century.

via ScienceAlert|

#climate-change #earths-rotation #nasa

scienceenvironment2 years ago•5 min saved

Climate Change Slows Earth's Spin, Lengthens Days

A new study reveals that human-caused climate change is melting polar ice, altering Earth's rotation, and lengthening days by milliseconds. This change, driven by the redistribution of meltwater from poles to the equator, is expected to accelerate, impacting technologies like GPS. The study highlights the profound influence of climate change on Earth's natural processes, potentially surpassing the moon's effect on day length.

via CNN|

#climate-change #day-length #earths-rotation

science-and-environment2 years ago•2 min saved

"Global Warming's Impact: Earth's Rotation Slows, Prompting Need for Negative Leap Second"

Earth's slower rotation due to climate change may necessitate the introduction of a negative leap second, a first in history, to adjust universal time. The need for this adjustment has raised concerns among time meteorologists and experts due to potential complications for computing systems, as existing codes are not equipped to handle a negative leap second. While the exact timing of a negative leap second remains uncertain, it highlights the ongoing impact of climate change on Earth's fundamental processes.

via USA TODAY|

#climate-change #earths-rotation #leap-seconds