Menu

Search

Rajendra Gupta

Rajendra Gupta

Adjunct professor, Physics, L’Université d’Ottawa/University of Ottawa
My current research interest is in astrophysics, cosmology, and general relativity, especially the dynamics of the universe under evolutionary physical constants beyond the standard model. I have shown that variations of constants are correlated and thus are not possible to observe as, in most observations, they cancel, e.g., lunar laser ranging, binary pulsar timing, gravitational lensing, and evolution of planetary orbits. I have hypothesized that the observed redshifts of distant galaxies are not only due to the expansion of the Universe but also caused by the photons losing energy due to cosmic drag while traveling over large distances.

I currently teach astrophysics and cosmology to senior undergraduates and graduate students. I enjoy teaching and learning through teaching.

We need to consider alternatives to dark matter that better explain cosmological observations

Jul 09, 2024 10:58 am UTC| Science

Do constants of nature the numbers that determine how things behave, like the speed of light change over time as the universe expands? Does light get a little tired travelling vast cosmic distances? It was believed that...

1 

Economy

Asia's Manufacturing Activity Stagnates Amid Mixed Signals

Overview of Asias Manufacturing Activity in October Asias manufacturing activity experienced stagnation in October, as a rebound in China failed to significantly uplift regional factories, according to private...

U.S. Job Growth Expected to Slow Amid Hurricanes and Strikes

Overview of U.S. Job Growth in October U.S. job growth is anticipated to slow significantly in October due to the impact of recent hurricanes and strikes among aerospace factory workers. The Labor Departments...

New Home Prices in China Rise Amid Market Recovery Efforts

New Home Prices in China Rise Amid Market Recovery Efforts In October, new home prices in China experienced a notable increase, reflecting a potential shift in the property markets trajectory. According to a...

South Korea's Export Growth Falls to Seven-Month Low Amid Global Demand Concerns

South Koreas Export Growth Drops as Global Demand Slows South Koreas export growth slowed sharply in October, rising just 4.6% year-over-year to $57.52 billion, marking the smallest increase in seven months. This...

Macquarie Group Reports Lower-Than-Expected First-Half Profits Amid Commodities Slowdown

Macquarie Group Misses First-Half Profit Estimates as Commodities Trading Declines Macquarie Group, Australias largest investment bank, reported a first-half profit increase of 14% to A$1.61 billion (USD 1.06...

Politics

Donald Trump’s Last Crypto Call Rallies Bitcoin Supporters in High-Stakes Election Push

With Election Day only days away, Donald Trump intensifies his campaign to woo crypto advocates, announcing a sweeping Bitcoin agenda that promises to keep BTC mining stateside and challenges claims from Kamala Harris....

‘Garbage or Nazis?’ Gov. Tim Walz Defends Biden’s Remarks on Trump Supporters—‘He Was Very Clear!’ Critics Demand Apology

Minnesota Governor Tim Walz is facing backlash after defending President Joe Bidens recent comment that referred to Trump supporters as garbage. In his statement, Walz, who recently compared Trump supporters to Nazis,...

‘America’s Going to Love It!’ Elon Musk Teases ‘Fun’ Second Trump Presidency—‘It’s Gonna Be Awesome!’ Sparks Mixed Reactions

In a tweet that has stirred up strong opinions across social media, billionaire Elon Musk shared his take on a potential second presidency for former President Donald Trump, calling it the most fun America has had in a...

‘A System Flaw Exposed!’ Non-Citizen Voting Incident at University of Michigan Sparks Outrage—‘Ballot Will Still Count!’

A 19-year-old student from China, enrolled at the University of Michigan, faces charges of illegal voting and perjury for allegedly casting a ballot in the 2024 U.S. election. The case has ignited a firestorm of...

Science

Breakfast Secrets: 'Fiber-rich Foods Are the Key to Weight Loss!' Experts Reveal Shocking Truth

Health experts often emphasize the importance of a balanced diet combined with regular exercise for weight management. However, for many, achieving these goals can be a daunting challenge. Instead of drastic food...

Scabies Surge Sparks Alarm: Doctors Warn Brits, 'Don't Ignore That Rash!'

Doctors in the United Kingdom are sounding the alarm over a dramatic rise in scabies cases, urging residents not to dismiss any signs of the itchy skin condition. Recent data shows that hospitals detected approximately...

Just 21 Minutes of Cycling a Day Is 'All You Need' for Total Health, Claims Expert

John Vinton, CEO of Aventon Bikes, insists that just 21 minutes of cycling each day can drastically enhance your health. This simple yet transformative practice can lead to a multitude of benefits, including reduced risks...

Urgent Alert: New COVID Variant Causes Alarming Symptoms—You Must Know This!

The UK is experiencing a rise in COVID-19 cases, with the UK Health Security Agency (UKHSA) confirming that the XEC strain of the virus is spreading. This variant, a combination of the KS.1.1 and KP.3.3 strains, is...

Technology

Uber Hits Record Profit but Issues Cautious Holiday Forecast Amid Booking Slowdown

Despite achieving a record $1.06 billion operating profit in Q3, Uber Technologies Inc. announced a softer-than-anticipated outlook for the holiday quarter. Weaker ride bookings and currency exchange headwinds impacted...

Elon Musk Considers Solar + Battery for Starlink, Enhancing Portable Internet Access Worldwide

Elon Musk, SpaceX CEO, is exploring the potential for a solar and battery-powered Starlink system, responding to user demand for 24/7 high-speed internet access across diverse environments. This enhancement could offer...

Exxon and Chevron Navigate Oil Price Drop as Investor Returns Face Potential Strain

As oil prices slump and market surpluses grow, Exxon and Chevrons latest earnings show resilience yet reveal pressures on future investor returns. Both oil giants are navigating a drop in profits while affirming dividend...

Hyundai IONIQ 5 Sets New Sales Record as Upgraded 2025 Model Prepares for Launch

Hyundais IONIQ 5 continues to dominate the electric SUV market, setting a new October sales record in the U.S. With the release of the 2025 model imminent, the IONIQ 5 is poised for even greater success with upgrades,...
  • Market Data
Close

Welcome to EconoTimes

Sign up for daily updates for the most important
stories unfolding in the global economy.